СОДРЖИНА Table of content

ПЛЕНАРНИ ПРЕДАВАЊА – PLENARY LECTURES PL–01-E Paolo Piccardo, Dragan Temelkoski, Biljana Minčeva-Šukarova, Orhideja

Grupče "STUDIES ON 3

rd CENTURY BC SHIELDS

FROM THE REPUBLIC OF MACEDONIA"

PL–02-E Velimir Radmilovic STRUCTURE AND COMPOSITION OF CORE/SHELL NANOSTRUCTURES EMBEDDED IN SOLIDS

PL–03-E Alexander Milchev NUCLEATION AND GROWTH PHENOMENA IN ELECTRO-CRYSTALLIZATION: THEORY AND EXPERIMENTAL RESULTS

PL–04-E Anita Trajkovska TRENDS IN DISPLAY TECHNOLOGIES – A CASE STUDY: LCD

ПРЕДАВАЊА ПО ПОКАНА – INVITED LECTURES

IL–01-E Radoslav Atanasoski FUEL CELL CATALYSTS OF TOMORROW: FUNDAMENTALS AND APPLICATION

IL–02-E Anita Grozdanov SUSTAINABLE ECO-FRIENDLY POLYMER CONSTRUCTION COMPOSITE MATERIALS

IL–03-E Igor Ćatić AGRICULTURE PRODUCTS – FOOD FOR PEOPLE BEING OR FOR MACHINERY

IL–04-E Marek Kozlowski MATERIALS FROM RENEWABLE RESOURCES

„КЛУЧНИ“ ПРЕДАВАЊА – KEYNOTE LECTURES

KL–01-E Jarosław J. Panek, Aneta Jezierska THE INTERACTION ENERGY INVESTIGATIONS OF SMALL COMPLEXES ON THE BASIS OF SYMMETRY-ADAPTED PERTURBATION THEORY

KL–02-E Igor Kuzmanovski, Sacha Javor, Jean-Louis Reymond, Marjana Novič THE INFLUENCE OF DIFFERENT AMINO ACIDS ON THE COMPACTNESS OF THE STRUCTURE OF DENDRIMERS – CHEMOMETRIC APPROACH

KL–03-E Kostas Symeonides ALTERNATIVE SOLUTIONS FOR WASTE MANAGEMENT: A SYMBIOSIS BETWEEN WASTE MANAGEMENT OPERATIONS AND CEMENT MANUFACTURE

KL–04-E Ilija Brčevski URBAN ZONES AND TOXIC WASTE

KL–05-E Petra Najmanova, Jan Vanek, Iveta Cepelakova, Josif Tanevski, BIOLOGICAL TREATMENT OF CONTAMINATED SOIL FROM THE SITE OF NATO MILITARY BASE AT PETROVEC AIRPORT & RESEARCH AND DEVELOPMENT ACTIVITIES IN BIOREMADIATION

KL–06-E Anka Trajkovska Petkoska POLYMER CHOLESTERIC LIQUID CRYSTAL FLAKES AS A NOVEL FORM FOR ELECTRONIC PAPER APPLICATION

KL–07-E N. Milosavljević, M. Kalagasidis Krušić, J. Filipović SWELLING BEHAVIOUR AND MECHANICAL PROPERTIES OF SEMI-IPNs OF CHITOSAN AND POLY(ETHYLENE GLYCOL)

KL–08-E Bogdana Koumanova ADSORPTION OF TOXIC ORGANICS ON NATURAL MATERIALS FROM AQUEOUS MEDIUM – MASS TRANSFER PROCESSES

KL–09-E Biljana Mangovska, ENZYMATIC VS.TRADTIONAL SCOURING OF COTTON: PROS AND CONS

KL–10-E Daniela Kovacheva PEROVSKITE MATERIALS WITH INTERESTING ELECTRICAL AND MAGNETIC PROPERTIES

KL–11-E Radmila Tomovska, Jozef Pola ARF LASER PHOTOLYTIC DEPOSITION OF NANOPOLYMERIC ORGANOSULFUR MATERIALS

KL–12-E Žarko Trpkoski ENERGY CONSERVATION PROGAM WITH ENVIRONMENTAL AND ECONOMIC EFFECTS AT TETEKS WOOL TEXTILE FACILITY

АНАЛИТИЧКА ХЕМИЈА И ХЕМИЈА НА ОКОЛИНАТА – ANALYTICAL AND ENVIRONMENTAL CHEMISTRY

ACE–01-E Nataša Bakreska Kormušoska, Katarina Čundeva, Trajče Stafilov DETERMINATION OF MANGANES FROM SURFACE WATER BY ETAAS FOLLOWING FLOTATION PRECONCENTRATION WITH CHROMIUM(III) ENTAMETHYLENEDITHIOCARBAMATE

ACE–02-E Margarita Ginovska, Hristina Spasevska, Jelena Dimitrijević, Živko Prelogovski PROCEDURE FOR ANALYSIS AND TREATMENT OF CONDENSATE FROM COMPRESSOR SYSTEMS

ACE–03-E Jasmina Dimitrova-Shumkovska, Božidarka Đoshić-Markovska, Sandra Petkovska, Marieta Shtakleva, Svetlana Stojanoska EVALUATION OF OXIDATIVE STRESS IN LIVER OF ANIMAL MODEL EXPOSED TO CHEMICAL CARCINOGEN – 7,12 DIMETHYLBENZ[A]ANTHRACENE

ACE–04-E Liljana Drvoshanova, Aleksandra Nikolova ADING AD COMPANY PRODUCTION ACTIVITY

ACE–05-E Violeta Ivanova, Goran Milanov, Ana Sarafimovska, Klime Beleski, Marina Stefova, Trajče Stafilov HPLC DETERMINATION OF ORGANIC ACIDS IN MACEDONIAN WINES

ACE–06-E Bisera Janeska, Hristina Babunovska, Biljana Sapkareva VALIDATION OF HEADSPACE GC METHOD FOR DETERMINATION OF ETHANOL,TOLUEN AND TRICHLOROETHYLEN AS RESIDUAL SOLVENTS IN CODEINE PHOSPHATE SESQUIHYDRATE

ACE–07-E Valentina Pavlova, Sonja Gadzovska-Simic, Simka Petrovska-Jovanovic DEVELOPMENT AND OPTIMIZATION OF SPE METHOD FOR DETERMINATION OF SOME METHYLENEDIOXY AMPHETAMINES IN URINE

ACE–08-E Valentina Pavlova, Sonja Gadzovska-Simic, Simka Petrovska-Jovanovic OPTIMISATION OF DERIVATIZATION PROCEDURE FOR ANALYSIS OF PRIMARY, SECONDARY AND TERTIARY AMINES

ACE–09-E Valentina Pavlova, Katarina Čundeva, Hristina Gajtanovska, Marjana Mladenovska HIGH-PERFORMANCE LIQUID CHROMATOGRAPHY METHOD FOR DETERMINATION OF THEOBROMINE, THEOPHYLLINE AND CAFFEINE IN COFFEE, CACAO AND TEA

ACE–10-E Milena Taseska, Petre Makreski, Vekoslava Stibilj, Radojko Jaćimović, Trajče Stafilov, Gligor Jovanovski DETERMINATION OF TRACE ELEMENTS IN CHALCOPYRITE BY NEUTRON ACTIVATION ANALYSIS AFTER MATRIX ELEMENTS SEPARATION

ACE–11-E Milan Antonijević, Zoran Simić, Zorica Petrović COULOMETRIC-POTENTIOMETRIC DETERMINATION OF ACIDITY OF HUMIC ACIDS BY APPLICATION SENSORS OF NATURAL SULPHIDE MINERALS AS SENSORS

ACE–12-E Ceren Bilgin Guney, Fatma Yonsel ON BOARD CHLORINE GENERATION AS A BALLAST WATER TREATMENT OPTION

ACE–13-E Mustafa Çelebier, Mustafa Sinan Kaynak, Sacide Altınöz, Selma Sahin HPLC METHOD DEVELOPMENT FOR THE SIMULTANEOUS ANALYSIS OF AMLODIPINE BESYLATE AND VALSARTAN IN SAMPLES FOR LIVER PERFUSION STUDIES

ACE–14-E V. Cibulic, J. Luković PURIFING CONCEPTION AND CHARACTERISTICS OF WASTE WATER OF THE PHARMACEUTICAL INDUSTRIES AD "AKTAVIS-ZDRAVLJE" LESKOVAC

ACE–15-E M. D. Gaye Seye, M. Mbaye, A. Coly, A. Tine, J. J. Aaron PHOTOCHEMICALLY INDUCED FLUORIMETRIC DETERMINATION OF (α-CYPERMETHRIN:IMPROVEMENT BY CYCLODEXTRINS

ACE–16-E Zora Grahovac, Snežana S. Mitić, Todor Pecev, Emilija Pecev DETERMINATION OF INSECTICIDE DIMETHOATE BY KINETIC METHOD

ACE–17-E Kadrija Hasanovic, Snjezana Maric, Jovan Djukovic, Azra Jaganjac IDENTIFICATION OF BENZENE AND PRODUCTS OF PHOTOCHEMICAL DEGRADATION OF BENZENE IN PRESENCE OF OTHER AIR POLUTANTS IN TUZLA AREA

ACE–18-E Azra Imamovic, Faiza Mustovic, Dragan Kresic, Lejla Klepo, Azra Jaganjac CHEMICAL ASPECT OF ANTIMICROBIC INFLUENCE MECHANISMS OF SILVER – IN VITRO –

ACE–19-E Margarita Koleva, Dimitrina Ivanova INVESTIGATIONS UNDER THE QUALITY OF THE WOOL, RECEIVED IN ECOLOGICAL METHODS FOR SKINS UNHAIRING

ACE–20-E Ružica Micić, Snežana S. Mitić TRACE ANALYSIS OF COPPER(II) USING KINETIC-SPECTROPHOTOMETRIC METHOD

ACE–21-E Dragan M. Milenović, Miodrag L. Lazić, Nada Č. Nikolić, Zoran B. Todorović, HPLC-UV ASSAY FOR NIFEDIPINE IN SWAB SAMPLES COLLECTED FROM PHARMACEUTICAL MANUFACTURING EQUIPMENT SURFACES

ACE–22-E Dragan M. Milenović, Miodrag L. Lazić, Nada Č. Nikolić, Zoran B. Todorović VALIDATION OF A LIQUID CHROMATOGRAPHIC METHOD FOR DETERMINATION OF NIFEDIPINE RESIDUES ON STAINLESS STEEL SURFACES DURING THE MANUFACTURE OF PHARMACEUTICALS

ACE–23-E Vojkan Miljković, Marija Pavlović, Biljana Kaličanin DETERMINING OF THE LEAD AND CADMIUM CONTENT IN THE KIDNEYS AND LIVER OF RATS

ACE–24-E Snežana S. Mitić, Gordana Ž. Miletić, Aleksandra N. Pavlović DETERMINATION OF ACETYLSALICYLIC ACID BASED ON "LIGAND-EXCANGE" REACTION

ACE–25-E Violeta Mitic, Marija Markovic, Dragana Pavlovic-Muratspahic, Vesna Stankov-Jovanovic, Snezana Nikolic-Mandic HEAVY METALS DISTRIBUTION IN TWO PLANT SPECIES GROWING IN BURNT AND UNBURNT SOILS FROM THE VIDLIC MOUNTAIN

ACE–26-E Aleksandra N. Pavlović, Snežana S. Mitić, Gordana Ž. Miletić QUANTITATIVE ANALYSIS OF ACETYLSALICYLIC ACID IN COMMERCIAL DOSAGE FORMS AND HUMAN CONTROL SERUM

ACE–27-E Alexander Petrov, Galia Gentscheva, Ivan Havezov, Elisaveta Ivanova UNCERTAINTY BUDGET OF THE FLAME ATOMIC ABSORPTION SPECTROMETRIC DETERMINATION OF Co, Ni, Cu, Cd AND Pd IN WATERS AFTER PRECONCENTRATION WITH 2-NITROSO-1-NAPHTOL

ACE–28-E Pavleta Petrova, Sonja Arpadjan-Ganeva PASSIVE SAMPLING SYSTEMS FOR ESTIMATION OF WATER POLLUTION AROUND COAL BURNING POWER PLANTS

ACE–29-E Snežana B. Tošić, Snežana S. Mitić, Aleksandra N. Pavlović DETERMINATION OF DIAZEPAM BY KINETIC SPECTROPHOTOMETRY

ACE–30-E Todorka Vladkova SURFACE MODIFICATION APPROACH TO NON-TOXIC BIOFOULING CONTROL

ACE–31-E Valentina Živanović, Renata Kovačević, Gordana Milovanović DETERMINATION OF Mn IN MORAVICA ACCUMULATION WATER BY ICP-AES

ACE–32-E Ljupka Arsova, Isak Marcetic, Aleksandar Lozajic, Jan Vanek, Vojtech Musil BIOREMEDIATION OF SOIL CONTAMINATED BY OIL DERIVATIVES AT THE LOCATION OF NIS PETROL - OIL RAFINERY IN NOVI SAD

ПРЕХРАНБЕНА ТЕХНОЛОГИЈА И БИОТЕХНОЛОГИЈА – BIOTECHNOLOGY AND FOOD TECHNOLOGY

BFT–01-E Mirjana Bocevska, Danica Andreevska, Verica Ilievska, Imad Aldabas EFFECT OF DEGREE OF MILLING ON PROTEIN CONTENT IN FRACTIONS OF THREE RICE CULTIVARS

BFT–02-E Mirjana Bocevska, Vlado Samardjioski, Stojan Rendevski, Bozidar Ristovski DIELECTRIC AND UV SPECTROSCOPY FOR DEEP FRYING OIL QUALITY MONITORING

BFT–03-E Eleonora Winkelhausen, Elena Veličkova, Samuel A. Amartey, Slobodanka Kuzmanova BIOFUEL PRODUCTION BY YEASTS AND BACTERIA

BFT–04-E Darko Dimitrovski, Charlotte van Twisk, Matthijs Dekker, Dane Bicanic COLORIMETRIC APPROACH TO QUANTIFICATION OF β-CAROTENE IN MANGO

BFT–05-E Donka Doneva-Sapceska, Igno Tasev, Silvija Trpkovska, Goran Bojadziski, Aco Dimitrovski THE INFLUENCE OF ENOLOGICAL TANNINS ON THE COLOR OF THE RED WINE VRANEC

BFT–06-E Sonja Gadzovska-Simic, Stephane Maury, Valentina Pavlova, Alain Delaunay, Mirko Spasenoski, Claude Joseph, Daniel Hagège PHENYLPROPANOID PRODUCTIONS IN HYPERICUM PERFORATUM L. IN VITRO CULTURES

BFT–07-E Sonja Gadzovska-Simic, Kristina Savreska, Oliver Tusevski, Natasa Brndevska, Valentina Pavlova, Mirko Spasenoski EFFECTS OF SALICYLIC ACID ON PHENYLPROPANOID PRODUCTIONS IN CALENDULA OFFICINALIS L.IN VITRO SHOOTS

BFT–08-E Sonja Gadzovska-Simic, Oliver Tusevski, Natasa Brndevska, Valentina Pavlova, Natalija Atanasova-Pancevska, Djoko Kungulovski, Mirko Spasenoski EFFECTS OF FUNGAL ELICITOR ASPERGILLUS FLAVUS ON PHENYLPROPANOID PRODUCTIONS IN HYPERICUM PERFORATUM L. CELL SUSPENSIONS

BFT–09-E Irina Mladenoska, Daniela Nikolovska-Nedelkoska, Eleonora Winkelhausen, Slobodanka Kuzmanova INFLUENCE OF TEMPERATURE ON THE DONOR SELECTIVITY OF NATIVE AND IMMOBILIZED ASPERGILLUS ORYZAE β-GALACTOSIDASE

BFТ–10-E Daniela Nikolovska Nedelkoska, Irina Mladenoska, Eleonora Winkelhausen, Slobodanka Kuzmanova IMMOBILIZATION OF ASPERGILLUS ORYZAE β-GALACTOSIDASE FOR EFFICIENT USE IN ORGANIC MEDIUM

BFТ–11-E Juliane Petrovska, Aco Dimitrovski MICROBIOLOGICAL MONITORING OF WATER – SELECTIVE ENUMERATION OF THE INDICATOR-MICROORGANISMS: TOTAL/FAECAL COLIFORMS AND E. COLI BACTERIA

BFT–12-E Marija Srbinoska, Breda Simonovska, Irena Vovk, Kiril Filiposki LUTEIN CONTENT IN FLOWERS OF TAGETES PATULA L. AND TAGETES ERECTA L.

BFТ–13-E Julijana Tomovska, Bogdan Bogdanov INITIATION OF METHOD FOR DETERMINATE ENZIMATYC ACTIVITY ON ANGIOTENZIN CONVERTING ENZIME (ACE) IN WHEY

BFТ–14-E Maja Shishovska, Vera Trajkovska, Zorica Arsova-Sarafinovska, Katerina Starkoska, Sandra Atanasovska HPLC/DAD DETERMINATION OF PERMETHRIN RESIDUES IN WINE

BFT–15-E Slavica B. Ilić, Sandra S. Konstantinović, Dragiša S. Savić, Vlada B. Veljković, Miodrag L. Lazić, Gordana Gojgić-Cvijović ANTIBIOTIC PRODUCTION BY STREPTOMYCES HYGROSCOPICUS ON MODIFIED MEDIA WITH ISATIN-3-THIOSEMICARBAZONE COMPLEXES

BFT–16-E Zoran Jovanovic, Vesna Stankov-Jovanovic, Snezana Nikolic-Mandic, Violeta Mitic, Radisav Mitic ENZYME INHIBITON BASED ASSAY FOR MAPROTILIN DETERMINATION IN PHARMACEUTICALS

BFT–17-E Sandra S. Konstantinović, Blaga C. Radovanović, Vanja S. Cakić, Slavica B. Ilić ANTIMICROBIAL ACTIVITY OF SOME ISATIN SCHIFF BASES

BFT–18-E Ida Leskosek-Cukalovic, Slavica Jelacic, Viktor Nedovic, Sasa Despotovic BEER WITH THYME AND OREGANO-BEVERAGE WITH FARMACODYNAMIC PROPERTIES

BFT–19-E Verica Manojlovic, Radoslava Stojanovic, Nikos Agouridis, Branko Bugarski, Ida Leskosek-Cukalovic, Maria Kanellaki, Viktor Nedovic IMMOBILIZED YEAST IN PVA/ALGINATE BEADS AIMED FOR BEER PRODUCTION

BFT–20-E Viktor Nedovic, Verica Manojlovic, Ida Leskosek-Cukalovic, Branko Bugarski IMMOBILIZED CELL SYSTEMS FOR FERMENTATION PROCESSES

BFT–21-E Blaga Radovanovic, S. Mitic, D. Kostic, M. Conic TOTAL POLYHENOLS, ANTHOCYANINS AND FREE RADICAL SCAVENGING OF SOME RED GRAPES VARIETIES FROM SOUTH SERBIA

BFT–22-E Olivera Stamenković, Vlada Veljković, Zoran Todorović, Miodrag Lazić, Dejan Skala THE PREPARATION AND CATALYTIC ACTIVITY OF CALCIUM OXIDE IN THE SUNFLOWER OIL METHANOLYSIS REACTION

BFT–23-E I. Stanisavljević, D. Veličković, M. Lazić, V. Veljković THE ULTRASOUND EXTRACTION OF OIL FROM TOBACCO (NICOTIANA TABACUM L.) SEEDS

BFT–24-E Snežana Trmčić NUTRITIVE VALUE OF WHITE WINES

BFT–25-E Snežana Trмčić, Zoran Rajić, Dušan Milić, Branka Kalanović, Bojan Dimitrijević THE IMPACT OF PACKAGING COSTS ON BUSINESS RESULTS IN WINE PRODUCTION

BFT–26-E Snežana Trmčić, Zoran Rajić, Dragić Živković, Dušan Milić THE PLACE AND ROLE OF THE ECONOMIC MODELS IN REVIEW AND IMPROVEMENT OF THE BUSINESS RESULTS

ХЕМИСКО ИНЖЕНЕРСТВО – CHEMICAL ENGINEERING

CHE–01-E Slavcho A. Aleksovski ISOLATION OF ESSENTIAL OIL FROM FOENICULUM VULGARE

CHE–02-E Slavcho A. Aleksovski COMPARISON OF ESSENTIAL OIL COMPOSITION OF CARUM CARVI L. OBTAINED BY HYDRODISTILLATION AND SOXHLET EXTRACTION METHODS

CHE–03-M Aleksandar Anastasovski MASS PINCH TECHNOLOGY – POSSIBLE TOOL FOR WASTE WATER TREATMENT SYSTEMS OPTIMISATION

CHE–04-E Balalovska -Gekic Gordana QUALITY OF DIESEL PRODUCED BY OKTA

CHE–05-E Zoran Bozinovski, Dejan Dimitrovski, Kostadin Nikolovski REMOVING THE ARSENIC FROM POTABLE WATERS BY THE USE OF FERRIC/FERROUS-ORIGIN COAGULANTS AND FLOCCULANTS

CHE–06-E Jovica Georgijev, Nadija Al Asadi REVAMP OF THE ISOMERIZATION UNIT

CHE–07-E Gligor Denkovski ACCREDITING OF THE LABORATORY – THEORY AND PRACTICE

CHE–08-E Dejan Dimitrovski, Zoran Bozinovski; Kostadin Nikolovski REMOVAL OF NICKEL IONS FROM AQUEOUS SOLUTIONS WITH ADSORPTION ON NATURAL ZEOLITES

CHE–09-Е Toni Zikovski PRODUCTION OF DIESEL WITH 10 ppm S

CHE–10-Е Mirko Marinkovski, Radmila Tomovska, Radek Fajgar UV LASER PREPARATION AND CHARACTERIZATION OF TiO2 BASED PHOTOCATALYSTS CONTAINING SiO2

CHE–11-Е Mirjana Minceva, Julija Taparcevska, Liljana Markovska, Vera Meshko DIFUSION MODELS FOR ADSORPTION KINETICS OF Pb

2+ ONTO

NATURAL ZEOLITE

CHE–12-Е Mirjana Minceva, Julija Taparcevska, Liljana Markovska, Vera Meshko SINGLE COMPONENT ADSORPTION OF Pb

2+ BY NATURAL ZEOLITE

CHE–13-Е Aleksandar Sokolovski SULPHUR RECOVERY UNIT

CHE–14-Е Suzana Crvenkova SOUR WATER STRIPPER UNIT

CHE–15-Е Mirko Aleksić, Ivana Banković-Ilić, Miodrag Lazić, Vlada Veljković, Dejan Skala SPECIFIC INTERFACIAL AREA IN A RECIPROCATING PLATE COLUMN WITH RASHIG RINGS PLACED IN INTERPLATE SPACES

CHE–16-Е Ivana Banković-Ilić, Ivica Stamenković, Olivera Stamenković, Vlada Veljković, Miodrag Lazić MODELING THE KINETICS OF VEGETABLE OIL METHANOLYSIS REACTION

CHE–17-Е Bogdan Bonev, Milka Boneva, Angel Komarev APPLICATION OF THE REVERSE OSMOSIS PROCESS FOR TREATING GROUND WATERS OF HIGH MINERAL CONTENT FOR THE HOUSEHOLD WATER NEEDS OF TPP ENEL MARITZA EAST 3

CHE–18-Е Bogdan Bonev, V. Nenov COPPER RECOVERY FROM COPPER LOADED ION-EXCHANGERS

CHE–19-Е Goran Boskovic, Marijana Kovacevic, Sanja Ratković, Paula Putanov FAVORABLE Pd-SnO2 ENTITIES FOR WATER DENITRATION REACTION

CHE–20-Е Christo B. Boyadjiev DIFFUSION MODELS OF COLUMN APPARATUSES AND SCALE – UP

CHE–21-Е Sead Hrustanović, Tatjana Lučić, Azra Jaganjac DIOXIN EMISSIONS IN INDUSTRIES

CHE–22-Е Sead Hrustanović, Tatjana Lučić, Azra Jaganjac POSSIBILITY OF FLUE GAS DESULFURIZATION (FGD) –GYPSUM USE FOR VARIOUS PRODUCTS

CHE–23-Е M. Karsheva, S. Georgieva FLOW BEHAVIOUR DURING FORMULATION OF COSMETIC OIL JELS BASED ON THE NATURAL AND SYNTHETIC UV-PROTECTION COMPONENTS

CHE–24-Е Ana Marjanović, Olivera Stamenković, Vlada Veljković, Zoran Todorović, Miodrag Lazić, Dejan Skala THE BASE CATALYZED ETHANOLYSIS OF SUNFLOWER OIL

CHE–25-Е Krasi Panayotova, Maria Doichinova, Christo Boyadjiev ON THE SCALE EFFECT AND SCALE-UP IN COLUMN APPARATUSES 1. INFLUENCE OF THE VELOCITY DISTRIBUTION

CHE–26-Е Krasi Panayotova, Maria Doichinova, Christo Boyadjiev ON THE SCALE EFFECT AND SCALE-UP IN COLUMN APPARATUSES 2. SCALE EFFECT MODELING

CHE–27-Е Petya Popova, Christo Boyadjiev ON THE MODELING OF FERMENTATION SYSTEMS

CHE–28-Е Olivera Stamenković, Vlada Veljković, Zoran Todorović, Miodrag Lazić, Dejan Skala PREPARATION AND CATALYTIC ACTIVITY OF CaO IN OIL METHANOLYSIS REACTION

CHE–29Е Marija B. Tasić, Vlada B. Veljković, BENCH-SCALE SIMULATION OF STARCH ACID HYDROLYSIS PROCESS

CHE–30-Е Dragan Tošković, Časlav Lačnjevac, Miloš B. Rajković, Dušan Stanojević, Miladin Gligorić, Aleksandar Marinković, Nebojsa Ralevic EXTRACTION OF GALLIUM FROM DECOMPOSED BAYER’S ALKALINE SOLUTIONS USING MODIFIED CHELATE RESINS

CHE–31-Е Vlada Veljković, Olivera Stamenković, Zoran Todorović, Miodrag Lazić, Dejan Skala BARIUM HYDROXIDE AS A CATALYST IN THE SUNFLOWER OIL METHANOLYSIS REACTION

CHE–32-Е Aleksandra Zarubica, Goran Boskovic Pt-Nb AND Pt-Re DOUBLY MODIFIED SULFATED ZIRCONIA – BASED CATALYSTS

ЕЛЕКТРОХЕМИЈА – ELECTROCHEMISTRY

ECH–01-Е Lasko Basnarkov, Lihnida Stojanovska-Georgievska, Cosimo Ancora, Margarita Ginovska, Giampiero Ruani, Hristina Spasevska EQUIVALENT CIRCUIT ANALYSIS OF TiO2/CuInS2 SOLAR CELLS

ECH–02-E Marija Davčeva, Valentin Mirčeski STUDYING HOMOGENEOUS REDOX REACTIONS OF BIOCHEMICAL IMPORTANCE WITH VOLTAMMETRIC METHODS. GLUTATHIONE OXIDATION

ECH–03-M Ирена Мицкова, Љубомир Арсов, СТРУКТУРНИ ИСТРАЖУВАЊА НА АНАТАЗНАТА ФОРМА НА ТИТАНОВИ ОКСИДИ

ECH–03-E Irena Mickova, Ljubomir Arsov STRUCTURAL STUDY THE FORM ANATASE OF TITANIUM OXIDES

ECH–04-M Ирена Мицкова, Абдурауф Пруси ПОЛУПРОВОДНИЧКИ СВОЈСТВА НА ТЕРМИЧКИ ФОРМИРАНИ НИОБИУМОВИ ОКСИДИ

ECH–04-E Irena Mиckova, Abduaruf Prusi SEMICONDUCTING PROPERTIES OF THERMALLY FORMED NIOBIUM OXIDES

ECH–05-E Perica Paunovic, Dragan Slavkov, Toma Gligorivski, Aleksandar Dimitrov, Svetomir Hadži Jordanov GALVANIC CORROSION OF HOT-DEEP ZINC PLATED PIPES IN A HOT WATER RECIRCULATION SYSTEM

ECH–06-E Orce Popovski, Perica Paunović, Ana Tomova, Rose Smileski, Aleksandar Dиmitrov, Svetomir Hadži Jordanov ELECTRODEPOSITION OF METALLIC PHASE ON POROUS ELECTROCATALYST SUPPORT

ECH–07-E Orce Popovski, Ana Tomova, Perica Paunović, Dragan Slavkov, Aleksandar Dimitrov, Bogdan Ranguelov, Veselin Tonchev, Svetomir Hadži Jordanov MORPHOLOGY OF SILVER NANO-POWDER PRODUCED BY PULSATING ELECTRODEPOSITION

ECH–08-E Mimoza M. Ristova, Valentin Mirceskи, Ratka Neskoska, Metodija Najdoski, Ivan Drangov ZnO:In AND TiO2 COATING ON ELECTROHROMIC Cu2O FILMS FOR VOLTAGE CYCLING LIFETIME IMPROVEMENT

ECH–09-E Birhan Sefer, Valentin Mirceski, Kurt Kalcher CARBON ELECTRODES MODIFIED WITH CARBON NANOTUBES FOR THE DETERMINATION OF HYDROGEN PEROXIDE

ECH–10-E Filip Spasovski, Valentin Mirčeski ELECTROCHEMICAL STUDY OF ClO4- ION TRANSFER KINETICS ACROSS STEROL MEMBRANE SUPPORTED AT THE WATER| 2-NITROPHENYLOCTYL ETHER INTERFACE BY MEANS OF THIN FILM ELECTRODES

ECH–11-Е Ljiljana Gajić-Krstajić, Nevenka Elezović, Ljiljana Vračar, Nedeljko Krstajić KINETICS OF THE HYDROGEN OXIDATION N THE PRESENCE OF THE CARBON MONOXIDE AT Pt/C ELECTRODE

ECH–12-Е Kurt Kalcher, Birhan Sefer, Petr Kotzian, Sabina Begic, Emir Turkusic, Karel Vytras HETEROGENEOUS CARBON ELECTRODES

ECH–13-Е Šebojka Komorsky-Lovrić Boris-Marko Kukovec, Zora Popović, Vlasta Vojković, Marijana Vinković SYNTHESIS AND CHARACTERIZATION OF COBALT COMPLEXES WITH 3- AND 6-METHYLPICOLINIC ACID; SPECTROPHOTOMETRIC STUDY OF COMPLEXES IN SOLUTION

ECH–14-Е A. Kowal, M. Kopczyk, A. Cuesta, C. Gutierrez, J. Marco PREPARATION OF HIGHLY DOPED TIN DIOXIDE POLYCHRYSTALLINE LAYERS AND CHARACTERIZATION BY USE OF EERS, XPS AND AFM

ECH–15-Е Milivoj Lovrić, Šebojka Komorsky-Lovrić A DISTRIBUTION OF REACTANT CONCENTRATION AT THE SURFACE OF AN INLAID SENSOR UNDER HYDRODYNAMIC CONDITIONS

ECH–16-E Ljubica J. Pavlović, Miomir G. Pavlović, Borka M. Jović, Vesna M. Maksimović ELECTRODEPOSITION AND MORPHOLOGY OF IRON POWDER BY CONSTANT CURRENTS

ECH–17-Е Miomir G. Pavlović, Miladin Gligorić, Miroslav M. Pavlović, Ljubica J. Pavlović, Milorad V. Tomić, Nebojša D. Nikolić SOME QUESTIONS ABOUT MORPHOLOGY AND STRUCTURE OF ELECTRODEPOSITED METAL COATINGS

ECH–18-E Jasna Stevanović, Jasna Stajić-Trošić, Vladan Ćosović, Olivera Pešić, Branka Jordović CHARACTERIZATION OF TERNARY CO-NI-MO ALLOY POWDERS OBTAINED BY ELECTROCHEMICAL DEPOSITION FROM ALKALINE ELECTROLYTE

ECH–19-E Jasna Stevanović, Jasna Stajić-Trošić, N.Talijan, A.Grujić, J. Popić ELECTROCHEMICAL DEPOSITION OF POWDER OF TERNARY CO-NI-MO ALLOY FROM ALKALINE ELECTROLYTE ..................................................... 223

ECH–20-E İncilay Süslü, Nuran Özaltın, Sacide Altınöz VOLTAMMETRIC DETERMINATION OF CANDESARTAN CILEXETIL BY COMPLEX FORMATION WITH CU (II)

ECH–21-E Milorad V. Tomić, Ljubica J. Pavlović, Miomir G. Pavlović, Dušan Stanojević, Milovan Jotanović AN ELECTRON MICROSCOPE INVESTIGATION OF ELECTROLYTIC SILVER POWDERS

ECH–22-Е Dragan Tošković, Časlav Lačnjevac, Miloš B. Rajković, Dušan Stanojević, Dragica Čamovska STUDY OF CORROSION RESISTANCE OF CHROMIUM-NICKEL STEELS IN CALCIUM-HYPOCHLORITE SOLUTION

ECH–23-E B. B. Vukanović, M. V. Budimir, R. P. Mihajlović, M. V. Vukanović, M. P. Gavrilović EFFECT OF LIGAND 1,10-PHENANTROLIN ON THE REDOX REACTION OF METAL IONS AND ITS POTENTIOMETRIC DETERMINATION BY PYRITE ELECTRODE

НАСТАВА – EDUCATION

EDU–01-Е Rajna Bogeska, Blagica Cekova, Vera Andonovska PROJECTS GRADING CRITERIA

EDU–02-E Violeta Solakova, Blagica Cekova, Rajna Bogeska, Filimena Karafiljkovska APPLICATION OF THE ACTIVITY – RESEARCH PROCESS IN THE EDUCATION

EDU–03-M Blagica Cekova, Violeta Solakova, Rajna Bogeska APPLICATION OF THE ACTIVITY – FORMATIVE AND SUMMATIVE EVALUATION IN THE EDUCATIONAL PROCESS

EDU–04-E Sasho Guergov A METHOD FOR DESIGN OF RECONFIGURABLE MULTIFUNCTIONAL MACHINE TOOLS

EDU–05-E Oriade Olateju. A., Ehimen Joy, James Musa Jeb, Okoro Loveth, Oriade Oluwasegun Benjamin, Ibrahim Mercy Idowu, Akinlolu Michael THE EFFECT OF INFORMATION TECHNOLOGY (I.C.T) AND IT’S RELEVANCE IN THE SECURITY WORLD

EDU–06-E Małgorzata Szafarska, Renata Wietecha-Posłuszny, Michał Woźniakiewicz, Paweł Kościelniak JUSTICE ABOVE ALL ELSE – ANALYTICAL CHEMISTRY IN A FORENSIC COSTUME

НЕОРГАНСКА ХЕМИЈА И ТЕХНОЛОГИЈА – INORGANIC CHEMISTRY AND TECHNOLOGY

ICT–01-E Ranko Adžiski, Emilija Fidančevska, Vojo Jovanov, Venceslav Vassilev APPLICATION OF THE POLYFACTOR EXPERIMENT DESIGN IN THE COURSE OF COMBUSTION OF RICE HUSK TO AMORPHOUS SILICA

ICT–02-E Vojo Jovanov, Snezana Petrovic, Emilija Fidancevska, Janja Ranogajec, Biljana Anguseva, Sinisa Markov BIOCORROSION OF CERAMICS FABRICATED FROM WASTE FLY ASH AND CLAY

ICT–03-M Благој Павловски, Агрон Река, ИСПИТУВАЊА НА МИНЕРАЛОШКИОТ СОСТАВ НА ВРЗИВНАТА КОМПОНЕНТА КАЈ ВАР-ТРЕПЕЛНИ КЕРАМИЧКИ ПРОИЗВОДИ ДОБИЕНИ ПО ХИДРОТЕРМАЛНА ПОСТАПКА

ICT–03-E Blagoj Pavlovski, Agron Reka, RESEARCH OF MINERALOGICAL COMPOSITION OF BINDING MATERIAL IN LIME-TRIPOLI CERAMIC PRODUCTS OBTAINED BY HYDROTHERMAL TREATMENT

ICT–04-M Билјана Пејова, Иван Грозданов, Диана Нешева, Ана Петрова СТРУКТУРА И ОПТИЧКИ СВОЈСТВА НА ТРОДИМЕНЗИОНАЛНИ ГРУПАЦИИ ОД КВАНТНИ ТОЧКИ НА AgBiS2: XRD, AFM И UV-VIS-NIR СТУДИЈА

ICT–04-E Biljana Pejova, Ivan Grozdanov, Diana Nesheva, Anna Petrova STRUCTURE AND OPTICAL PROPERTIES OF 3D ASSEMBLIES OF AgBiS2 QUANTUM DOTS: XRD, AFM AND UV-VIS-NIR STUDY

ICT–05-E Blagica Cekova, Dragi Kocev, Elena Kolcakovska SYNTHESIS AND CHARACTERIZATION OF THE ZEOLITE ZSM-20

ICT–06-E Lilia Aljihmani, Venceslav Vassilev, Temenuga Hristova-Vasileva, Emilija Fidancevska NEW CHALCOGENIDE GLASSES FROM THE As2Se3-Ag4SSe-CdTe SYSTEM

ICT–07-E Milica Hadnadjev, Dmitar Zoric, Radmila Marinkovic-Neducin, Eva Loncar, Jonjaua Ranogajec CHARACTERISTICS OF SELF-CLEANING TiO2 COATING ON CLAY ROOFING TILES

ICT–08-E Ljubiša Mišić, Saša Ivanović, Dragan Marković, Tatjana Apostolovski-Trujić HIGH TEMPERATURE RESISTANCE VESSELS PRODUCTION FOR FIRE ASSAYING ANALYSES

ICT–09-E N. Štrbac, I. Mihajlović, D. Minić, D. Živković, B. Andjelić THERMODYNAMIC AND KINETIC INVESTIGATIONS OF ROASTING PROCESS OF COPPER CONCENTRATE WITH HIGHTER CONTENT OF ARSENIC AND MERCURY

ICT–10-E Anja M. Terzic, Ljubica M. Pavlovic INFLUENCE OF ADDITIVES ON PROPERTIES, MICROSTRUCTURE AND PHASE-FORMATION OF CORUNDUM BASED REFRACTORY CONCRETE

ICT–11-E Miloš Vasić, Milica Arsenović, Zagorka Radojević, Đorđe Janačković, THE INFLUENCE OF MECHANICAL ACTIVATION ON CHARACTERISTIC AND PROPERTIES OF MASONORY PRODCUTS

ICT–12-E Venceslav Vassilev, Lilia Aljihmani, Temenuga Hrisova-Vasileva PHASE EQUILIBRIA IN THE GeSe2-Ag4SSe SYSTEM

ICT–13-E Venceslav Vassilev, Gergo Vassilev, Julita Dikova PREPARATION AND PROPERTIES OF MULTICOMPONENT GeSe2-Sb2Se3-AgI GLASSES

ICT–14-E Biljana Zlaticanin, Mirjana Filipovic THE EFFECT OF TITANIUM CONTENTS ON THE STRUCTURE OF THE Al-5wt. %Cu-5wt. %Mg ALLOY

ICT–15-E H. Ben Abdullah, Raouf Bennaceur FIRST-PRINCIPLES CALCULATIONS OF THE ELECTRONIC AND OPTICAL PROPERTIES OF In6S7 COMPOUND

ПОЛИМЕРИ И ПОЛИМЕРНИ МАТЕРИЈАЛИ – POLYMERS AND POLYMER MATERIALS

PPM–01-Е Emilija Bajraktarova-Valjakova, Anita Grozdanov, Bona Bajraktarova , Elena Petkova INTERFACE CHARACTERIZATION OF THE PORCELAIN/COMPOSITE DENTAL SYSTEM IN THE RESTORATIVE DENTISTRY

PPM–02-E Jadranka Blaževska-Gilev, Jozef Pola IR LASER ABLATION OF POLY(VINYL CHLORIDE-CO-VINYL ACETATE)

PPM–03-E Jadranka Blaževska-Gilev, Jozef Pola IR LASER ABLATION OF POLY(VINYL ACETATE) LOADED WITH METAL PARTICLES

PPM–04-E Jadranka Blaževska Gilev, Dijana Spaseska COMPARATIVE STUDY OF REPROCESSING AND RECYCLING OF POLY(VINYL CHLORIDE) AND POLY(VINYL CHLORIDE-CO-VINYL ACETATE)

PPM–05-E Vesna Daniloska, Jadranka Blaževska-Gilev, Vesna Dimova, Radmila Tomovska UV LIGHT INDUCED SURFACE MODIFICATION OF LLDPE FILMS WITH BIOACTIVE COMPOUNDS

PPM–06-M Бојан Димзоски, Gennaro Gentile, Maurizio Avella, Гордана Богоева-Гацева ДОБИВАЊЕ И СВОЈСТВА НА ЕКО-ПРИЈАТЕЛСКИ ПОЛИМЕРНИ КОМПОЗИТИ

PPM–06-E Bojan Dimzoski, Gennaro Gentile, Maurizio Avella, Gordana Bogoeva-Gaceva PREPARATION AND PROPERTIES OF ECO-FRIENDLY POLYMER COMPOSITES

PPM–07-E Bojan Dimzoski, Slobodan Prendžov, Magdalena Prendžova PHYSICAL-MECHANICAL PROPERTIES OF POLYURETHANE FOAMS SYNTHESIZED USING DIFFERENT TYPE OF POLYOLS

PPM–08-Е Todor Gavrilov, Ilco Gjuroski CHARACTERIZATION OF RECYCLATES OF POLYETHYLENE’S FILMS AND THEIR BLENDS

PPM–09-E Anita Grozdanov, Biljana Petrusevska, Aleksandra Buzarovska, Vesna Panova PROCESSING OF COMPOSITES BASED ON WOOD FLOUR AND PHENOLIC RESIN

PPM–10-E Rubén Darío Betancourt Cortés, Milena Avramović, Miloš Milovanović, Lynne Katsikas, Ivanka G. Popović INCREASED THERMAL STABILITY OF POLY(METHYL METHACRYLATE) PREPARED BY THE RAFT MECHANISM

PPM–11-E Peter Dineff, Dilyana Gospodinova, Lydia Kostova, Todorka Vladkova, Chen Erfan NEW ATTEMPT AT PLASMA AIDED FLAME RETARDATION IN WOOD AND CELLULOSIC FIBROUS MATERIALS

PPM–12-E Strashimir Djoumaliisky, Georgi Kotzev, Tatjana Dobreva PROCESSING AND PROPERTIES OF POLYPROPYLENE/CARBON BLACK CONDUCTIVE COMPOSITES

PPM–13-E Enis S. Džunuzović, Milena Marinović-Cincović, Katarina Jeremić, Jovan Nedeljković PREPARATION AND CHARACTERIZATION OF PMMA /α-Fe2O3 NANOCUBES COMPOSITE

PPM–14-E Valentin Gaydarov, Galina Zamfirova, Rosario Benavente, María L. Cerrada, José M. Pereña MICROHARDNESS INVESTIGATION OF DIFFERENT TYPES OF POLYPROPYLENE AND THEIR BLENDS WITH ETHYLENE-OCTENE COPOLYMERS

PPM–15-E Nina Hauptman, Marta Klanjšek Gunde, Marijan Maček, Marija Bešter Rogač ELECTRICAL PROPERTIES OF EPOXY–BASED CARBON BLACK NANOCOMPOSITE AND ITS TECHNOLOGICAL RELIABILITY

PPM–16-E Rumiana Kotsilkova, Boryana Milosheva, Evgeni Ivanov, Ekaterina Krusteva, Antonia Topliyska POLYMER NANOCOMPOSITES FOR STRUCTURAL APPLICATION. DESIGN, SYNTHESIS AND CHARACTERIZATION

PPM–17-E Rosa Mateva, Svetlana Petrova, I. Iliev SYNTHESIZES AND PROPERTIES OF BIODEGRADABLE AND BIOCOMPATIBLE BLOCK COPOLYMERS OF PEG AND CLO

PPM–18-E Rosa Mateva, Kr. Zhilkova, Galina Zamfirova, R. Díaz-Calleja, A. Garcia-Bernabé BLOCK COPOLYMERS OF ξ-HEXANOLACTAM AND (-DODECALACTAM WITH AN ELASTIC POLYPROPYLENEOXIDE BLOCK. STRUCTURE – PREOPERY RELATIONSHIPS

PPM–19-E Kamelija Ruskova, Nikolaj Dishovsky CONSTANT MAGNETIC FIELD INFLUENCE ON THE VULCANIZATION OF UNFILLED RUBBER BASED BLENDS

PPM–20-E Todorka Vladkova, Ivan Keranov, Petar Dineff NEW POSSIBILITIES TO PDMS SURFACE MODIFICATION

PPM–21-E Jasna Vuković, Slobodan Jovanović, Manfred D. Lechner

SYNTHESIS AND CHARACTERIZATION OF ALIPHATIC HYPERBRANCHED POLYESTERS

PPM–22-E Lyubov Yotova, Svetlana Petrova, Tzvetan Velinov, Rosa Mateva AMPHIPHILIC BIODEGRADABLE-BIOCOMPATIBLE BLOCK COPOLYMERS ON THE BASE OF POLY(ETHYLENEGLYCOL-CO-CAPROLACTONE)

PPM–23-E Darina Zheleva INVESTIGATION OF TYPE CARBON BLACK ON THE STEARIC ACID DISPERSION EFFECT IN FILLED RUBBER BLENDS

PPM–24-E Miltcho Natov, Stefanka Vassileva, Margita Natova ON THE CHEMICAL INTERACTIONS BETWEEN POLY(UNDETANEAMIDE) AND POLY(BUTADIENE-CO-ACRYLONITRILE) DURING REACTIVE EXTRUSION

СПЕКТРОСКОПИЈА, ОРГАНСКА И СТРУКТУРНА ХЕМИЈА – SPECTROSCOPY, ORGANIC AND STRUCTURAL CHEMISTRY

SOSC–01-E Slobotka Aleksovska, Igor Kuzmanovski, Sandra Dimitrovska-Lazova STRUCTURAL CORRELATIONS IN CUBIC AND HEXAGONAL PEROVSKITES OF A2+(B′2+0,33B″5+0,67)O3 TYPE USING MULTIPLE LINEAR REGRESSION AND ARTEFICIAL NEURAL NETWORKS

SOSC–02-E Jane Bogdanov STEREOCHEMISTRY OF NUCLEOPHILIC ADDITION TO CARBONYL GROUPS OF SPIROKETONES

SOSC–03-E Jane Bogdanov SYNTHESIS AND CHARACTERIZATION OF NEW SYMMETRICALLY SUBSTITUTED 2,7-DIMETHYLNAPHTHALENE DERIVATIVES

SOSC–04-E Jane Bogdanov THEORETICAL STUDIES ON MONOSUBSTITUTED 2,7-DIMETHYL-APHTHALENE DERIVATIVES AND THEIR RADICAL ANIONS

SOSC–05-E Jane Bogdanov, Menče Najdoska, Brankica Veličkovski ISOLATION AND ANALYSIS OF THE ESSENTIAL OIL FROM FOENICULI FRUCTUS

SOSC–06-E Vesna Dimova, Nada Perisic-Janjic SOLVENT AND SUBSTITUENT EFFECTS ON THE ELECTRONIC SPECTRA OF N

-1-ARYL/HETEROARYLAMINO/METHYL/ETHYL-1,2,4-

TRIAZOLES

SOSC–07-E Vesna Dimova, Nada Perisic-Janjic QSAR STUDY ON INHIBITION OF B. SUBTILIS, E. COLI AND S. ENTERITIDIS BY 1,2,4-TRIAZOLES: PHYSICOCHEMICAL APPROACH USING SURFACE TENSION, REFRACTIVE INDEX, DENSITY AND POLARIZABILITY

SOSC–08-E Vladimir Ivanovski, Miha Bukleski IR SPECULAR REFLECTANCE SPECTRA OF ALUMS OBTAINED FROM POWDERED SAMPLES – DISPERSION ANALYSIS

SOSC–09-M Ахмед Јашари, Агим Шабани, Муртезан Исмаили, Кристина Младеновска, Луминита Силагхи-Думитреску, Божана Михова, Емил Поповски РЕАКЦИИ НА 4-ХИДРОКСИКУМАРИН СО НЕКОИ АЛДЕХИДИ ВО ВОДНА СРЕДИНА

SOSC–09-E Ahmed Jashari, Agim Shabani, Murtezan Ismaili, Kristina Mladenovska, Luminita Silaghi-Dumitrescu, Bozhana Mikhova, Emil Popovski REACTIONS OF 4-HYDROXYCOUMARIN WITH SOME ALDEHYDES IN AQUEOUS MEDIA

SOSC–10-E Olivera Magdenoska, Verče Manevska, Biljana Minčeva-Šukarova MICRO-RAMAN SPECTROSCOPIC STUDIES OF SOME FIBRES FROM HUMAN AND ANIMAL ORIGIN

SOSC–11-E Karolina Pendovska, Zoran Zdravkovski DEVELOPMENT OF A METHOD FOR ASSESMENT OF OCCUPATIONAL PESTICIDE EXPOSURE IN HUMAN HAIR

SOSC–12-Е Viktor Stefov, Adnan Cahil, Bojan Šoptrajanov, Metodija Najdoski, Filip Spirovski, Bernward Engelen, Heinz Dietrich Lutz, Violeta Koleva FOURIER TRANSFORM INFRARED AND RAMAN SPECTRA OF MgRbPO4·6H2O

SOSC–13-E Olgica Trenčevska, Kiro Stojanoski, Bohuslav Gaš, Vasko Aleksovski, Angel Mitrevski THE STUDY OF PROTEINS IN SERUM SAMPLES USING AN OPTIMIZED LAB-ON-A-CHIP PROTEIN ELECTROPHORESIS METHOD

SOSC–14-E Rachid Benslimane CHARACTERIZATION OF FIBROUS MATERIALS BY USING IMAGE PROCESSING AND ANALYSIS

SOSC–15-E Majlinda Daci-Ajvazi, Nexhat Daci, Sevdije Govori, Osman Leci, Vuksan Kalaj, Teuta Selimi, Bashkim Thaqi, Dafina Hoxha MICROBIOLOGICAL ACTIVITY OF SOME NEWLY SYNTHESIZED ASPIRIN HETEROARYL DERIVATIVES

SOSC–16-E Yordanka Ganeva, Miglena Valyova, Stanimir Stoyanov, Ivan Petkov, Daniela Antonova GAS-CHROMATOGRAPHIC-MASS SPECTRAL STUDY OF TRITERPENOIDS AND STEROLS FROM HIERACIUM HOPPEANUM

SOSC–17-E Jože Grdadolnik INTRINSIC BACKBONE PREFERENCES ARE FULLY PRESENT IN BLOCKED AMINO ACIDS

SOSC–18-E Pavle A. Hadzic, Mirjana M. Popsavin, Vojkan M. Zoric OXETANE RING IN CARBOHYDRATES NUCLEOPHILIC RING OPENING WITH GRIGNARD REAGENTS

SOSC–19-E Hamide Ibrahimi, Sevdije Govori, Violetë Vrajolli, Osman Leci, Arleta Rifati SYNTHESIS OF SOME DIAZEPINES AND OXAZEPINES FROM THEIR CORRESPONDING PYRIMIDINES

SOSC–20-E Sandra S. Konstantinović, Blaga C. Radovanović, Slavica B. Ilić, Budimir V. Konstantinović IDENTIFICATION OF SOME ISATIN SCHIFF BASES

SOSC–21-E Thomas G. Mayerhöfer, Jürgen Popp, PSEUDOOPTICAL CONSTANTS OF POLYCRYSTALLINE MATERIALS WITH OPTICALLY LARGE CRYSTALLITES

SOSC–22-E Gabriel Munteanu, Cornel Miclea PROPERTIES OF SOME CYCLODEXTRINES EVALUATED BY QUANTUM CHEMICAL CALCULATIONS

SOSC–23-E Zorica D. Petrović, Dusica M. Simijonović, Vladimir P. Petrović DIETHANOLAMINE: AN USEFUL LIGAND, BASE AND REACTION MEDIUM FOR PHOSPHINE-FREE Pd-CATALYZED HECK REACTIONS

SOSC–24-E A. D. Popova, Y. I. Binev, P. J. Vassileva-Boyadjieva, I. G. Binev EXPERIMENTAL IR, AND COMPUTATIONAL AB INITIO AND DFT B3LYP STUDIES ON SPECTRAL AND STRUCTURAL CHANGES, CAUSED BY THE CONVERSION OF METHYL CYANOACETATE INTO CARBANION

SOSC–25-E Arleta Rifati, Sevdije Govori, Osman Leci,Arlinda Bytyçi, Hamide Ibrahimi NEW[1,2,4]-TRIAZOLE-3-THIONES FROM CORRESPONDING HYDRAZINES

SOSC–26-E Simeon Stoyanov, Bistra Stamboliyska, Angelina Popova IR SPECTRA AND STRUCTURE OF 2-[5,5-DIMETYLL-3-(2-PHENYL-VINYL)CYCLOHEX-2-ENYLIDENE]-MALONONITRILE AND ITS POTASSIUM CYANIDE AND SODIUM METHOXIDE CARBANIONIC ADDUCTS: EXPERIMENTAL AND B3LYP STUDIES

SOSC–27-E Evelina Velcheva, Bistra Stamboliyska, Pavlina Boyadjieva DFT AND EXPERIMENTAL STUDIES ON THE IR SPECTRA AND STRUCTURE OF O-VANILLIN AND ISO-VANILLIN AND THEIR OXYANIONS

ТЕКСТИЛНО ИНЖЕНЕРСТВО – TEXTILE ENGINEERING

TXE–01-E Elena Tomovska COMPONENTS OF APPAREL E-RETAILERS WEBSITES AND THEIR RELATIONSHIP TO ONLINE PURCHASE

TXE–02-M Sonja Cortosheva, Maja Nofitoska ANALYSES OF THE STRUCTURE OF THE WORKING TIME IN THE PROCESS OF IRONING

TXE–03-E Milena Miljković, Milovan Purenović, Sonja Randjelović THE DIFFERENCES IN THE WHITENESS LEVELS OF THE HYDROGEN-PEROXIDE AND TECOWHITE AC BLEACHED COTTON

TXE–04-E Mirjana Mizdrakovic, Dragan Djordjevic, Miodrag Smelcerovic BEECH ASH – A NATURAL ADSORBENT FOR DECOLOURIZATION OF WASTE WATERS AFTER TEXTILE DYEING

TXE–05-E Tanja J. Nikolić, Vlada B. Veljković, Petar D. Škundrić ANTIMICROBIAL COTTON FIBERS FOR MEDICAL APPLICATIONS

TXE–06-E Christo Petrov STRUCTURAL PECULIARITIES IN LADY’S SHOULDER ARTICLES FOR DISPROPORTIONATE FIGURES

TXE–07-E Christo Petrov, Radka Atanasova COMPUTER AIDED PATTERN DESIGN OF THE LADIES’ COAT HOODS

TXE–08-E Dragan Radivojevic, Jovan Stepanovic, Vasilije Petrovic ANALYSIS OF BREAKING CHARACTERISTICS OF THREAD YARNS

TXE–09-E Nebojša Ristić, Ljubiša Milenković, Ivanka Ristić THE USE OF CHROME DYES ON WOOL: ENVIRONMENTAL AND QUALITY APPROACH

TXE–10-E Miodrag Smelcerovic, Dragan Djordjevic, Mirjana Mizdrakovic, ECOLOGICAL FINISHING OF WOOLEN FABRICS WITH WATER EXTRACTS OF SOME PLANTS

TXE–11-E Rossitza Krüger, Margarita Neznakomova, Christo Petrov ORGANIC COTTON AND PRINCIPLES OF ORGANIC PRODUCTION TROUGH ON THE TEXTILE SUPPLY CHAIN

TXE–12-E Zoran Angjelkoski PRODUCTION OF CEMBED KNITTING YARN WITH ELASTINE ON EFFECTIVE TWISTING MACHINES

TXE–13-E Gordana Blaževska METHODS OF PROCESSING OVER THE KNITTING GARMENTS OF 100% WOOL AND MIXTURES RICH IN WOOL

TXE–14-E Borko Blažeski ENZYME WASHING OF READY MADE GARMENT

TXE–15-E Ljubiša Gjorgjeski ANTI-MICROBE PROTECTION OF THE KNITWEAR SOCK YARN

TXE–16-E Marica Hristova PRESSING AND FINAL FINISHING OF A READY-MADE GARMENT

OPCW CONVENTION ON THE PROHIBITION OF THE DEVELOPMENT, PRODUCTION, STOCKPILING AND USE OF CHEMICAL WEAPONS AND ON THEIR DESTRUCTION

LECO Instruments

CV CV’s OF PLENARY, INVITED AND KEY NOTE LECTURES

SPONSORS OF THE 20th

CONGRESS OF CHEMISTS AND TECHNOLOGISTS OF MACEDONIA

INDEX

ХХ конгрес на хемичарите и технолозите на Македонија 20th Congress of Chemists and Technologysts of Macedonia

Ohrid 2008

PPM–11-E

NEW ATTEMPT AT PLASMA AIDED FLAME RETARDATION IN WOOD AND CELLULOSIC FIBROUS MATERIALS

Peter Dineff*, Dilyana Gospodinova*, Lydia Kostova**, Todorka Vladkova***, and Chen Erfan****

e-mail: dilianang@abv.bg * Technical University of Sofia, Department of Electrical Engineering, Bulgaria

** Interiorprotect, Ltd., Sofia, Bulgaria *** University of Chemical Technology and Metallurgy, Sofia, Bulgaria

**** Sheniang Institute of Chemical Technology, Sheniang, Liaoning, China Introduction The plasma aided flame retardation has been conceived and developed as a result of a new plasma aided process: the plasma aided capillary impregnation of water solution, which evolved as a fire protection process for wood, wooden products and cellulosic fibrous materials using original phosphorous and nitrogen flame retardants (PhNFR), manufactured by Interiorprotect, Ltd. (Sofia, Bulgaria) under the trade name of CSE-96. The plasma-chemical surface pre-treatment of wood modifies the chemical activity of its surface as well as the capillary activity of wood and improves such technological characteristics of the capillary impregnation process as the penetration depth, speed of solution spreading and adsorption, and specific quantity of adsorbed solution per unit of area. This allows using the plasma aided retardation as a finishing process and applying it in situ, [1, and 2]. This study was developed as part of an investigation of the thermal degradation analysis of flame retarded wood (FR wood), wooden products, and cellulosic fibrous materials. The study was focused on well-known thermal methods of analysis of degradation of wood, cellulose, hemicellulose, and lignin. The methods included thermogravimetric analysis (TGA), differential thermal analysis (DTA), and differential scanning calorimetry (DSC). These thermal methods were used for evaluation of the influence of FR and plasma FR wood treatment on pyrolysis. Thermal analyses gave basic information on the mechanism of pyrolysis and combustion as well as data on the effect of FR wood treatment and modification. However, the correlation between results of thermal analyses and real fires has not been established yet, [2]. Wood cell wall is thought to be a composite material made of cellulose microfibrils embedded in a water-reactive matrix of hemicellulose and lignin. The ability of the matrix to adsorb water is thus of critical importance in the water solution capillary impregnation of wood (N. Barber 1968; I. Cave 1972). It is known that machining and heat treatments reduce wood hygroscopicity and chemical activity by modifying this water-reactive matrix (E. Obataya et al. 2000; E. Obataya and B. Tomita 2002) in different ways. Cold plasma pre-treatment redresses the wood surface balance, chemical and capillary activities, and as result of all changes increases the impregnation ability of wood and wooden materials (P. Dineff and D. Gospodinova 2005), [1, 2]. A discussion of the general thermal degradation process for natural wood and FR wood is followed by use of this method to analyze the thermal degradation of various kinds of FR woods including plasma aided flame retarded wood. Experimental The plasma aided flame retardation process involves three tools which are used for exerting direct impact on the thermal degradation of flame retarded wood: the first one consists in impregnating natural pine wood (Pinus sylvestis) with a 30-percent water solution of PhNFR (CSE-96) – sample CSE; the second one consists in adding 5 vol. % of anionic surfactant (AS5) to the impregnating solution CSE-96 – sample AS5; the third one consists in performing cold plasma surface pre-treatment for 60 s in the plasma of dielectric barrier discharge (10 kHz) burning in air at atmospheric pressure and room temperature – sample HF. The thermal degradation of all RF wood samples is compared with the

ХХ конгрес на хемичарите и технолозите на Македонија 20th Congress of Chemists and Technologysts of Macedonia

Ohrid 2008

basic sample made of natural pine wood (Pinus sylvestris). The thermal destruction of the PhNFR used, which contains about 13.5 mass % (as P2O5) is investigated separately. Experimental conditions for all runs were as follows: thermogravimetric (TG), derivative thermogravimetric (DTG), and differential calorimetric (DSC) analyses were completed by Perkin-Elmer’s equipment in air; the heating rate was 10 0C/min and a heating range from 26 ÷36 0C to 600 0C was used; sample size usually was about 3.0 mg. All runs were done at least twice. Results and Discussion The thermal destruction of PhNFR starts intensively with a mass loss at about 143 0C (2 mass %) and rapidly attains its maximum at 190 0C (DTG), whereas in the range 26÷ 232 0C, i. e. before the flash point of 268.6 0C, its mass decreases with 30 mass %. This process is conducted with active heat absorption up to 356.5 0C, the general endothermic effect being 1236.8 J/g J/g. The exothermic effect from the destruction of FR after this temperature remains about two times lower, namely 528.0J/g, Fig. 1.

Fig. 1. TG/DTG and DSC - thermograms of phosphor and nitrogen containing flame retardant (PhNFR).

The thermograms from the thermogravimetric (TGA) and differential thermal analysis (DTA) (a), and differential scanning calorimetry (DSC) of all FR-wood materials investigated and those of a natural wood sample are represented in a common coordinate system, Fig. 2, the characteristic peaks and enthalpy for the characteristic areas of thermal degradation – the endothermic area of dehydratation, desorbtion of gases, and thermal destruction of PhNFR; and the exothermic areas corresponding to flaming and glowing with char formation - being given systematically in Table 1 and Table 2. A comparison between the two basic cases – plasma aided flame retarded wood (HF) и natural wood (K) – is represented separately, the characteristic points – ignition, burning, and flash points, the characteristic peaks of flaming L and glowing N – being shown on the curve of the basic relationship (K), Fig. 3. Combining the anionic active phosphor and nitrogen FR-water solution with cold plasma aided capillary impregnation creates new FR-wood products

Table 1

Peak Pine sample (K) CSE impregnation (CSE) Surfactant aided impregnation (AS5)

Plasma aided impregnation (HF)

Temperature Heat flow Temperature Heat flow Temperature Heat flow Temperature Heat flow 0C mJ/min 0C mJ/min 0C mJ/min 0C mJ/min

A 76.7 - 6.710 74.7 - 7.026 70.1 - 5.638 68.2 - 4.788 B 132.2 -14.886 130.4 - 12.672 129.0 - 10.486 C 197.3 - 22.342 191.9 - 19.850 195.0 - 15.073 IP 132.5 227.38 227.0 221.9 L 261.8 28.743 262.4 23.918 258.1 24.202 M 331.8 106.502 344.1 40.5010 369.2 39.500 349.0 30.2539 N 468,8 91.623 489.6 78.290 500.6 69.124 497.4 62.736

-60

-50

-40

-30

-20

-10

0

10 100 200 300

400 500

172.6

187.6

226.5 264.6

116.7

Temperature T, 0C

Hea

t Flo

w q

, mJ/

min

356.5

Enthalpy Endothermic: - 439.623 J/g; Exothermic: + 81.334 J/g

Exo

DSCLoss

of M

ass (

deri

ved)

∆M

, %

-60

-40

-20

0 600 100 200 300 400 500

-80 190

Temperature T, 0C

DTG

TG

-0.6

-0.4

-0.2

0

-0.8

Flame RetardantCSE-96

Rate

of L

oss o

f Mas

s ∆M

/∆T,

%/0 C

ХХ конгрес на хемичарите и технолозите на Македонија 20th Congress of Chemists and Technologysts of Macedonia

Ohrid 2008

a)

b)

Fig. 2. TG/DTG and DSC thermograms of natural basic pine (K) wood (Pinus sylvestris) and different kind of FR wood: CSE – capillary impregnation with CSE-96 FR-solution; AS5 - capillary impregnation with CSE-96 FR-solution

improved by 5 vol. % of anionic surfactant “Antikristalin” (Interiorportect, Ltd., Bulgaria); HF – cold plasma aided capillary impregnation with anionic surfactant corrected FR water solution CSE-96.

with increased thermal degradation stability and reduced enthalpy of burning – 8.122 kJ/g versus 19.526 kJ/g (a reduction of 42 %), Table 2. In addition, the endothermic effect of PhNFR (peaks B and C) displaces substantially the ignition point from 132.5 0C to 221.9 0С, Fig. 3. The heat flow of peak L (flaming) remains very low (24.202 versus 106.502 mJ/min) and almost equal to the heat flow of the flash point of natural pine wood, Table 1.

Acknowledgement The financial support of the National Science Fund, Ministry of Education and Science of Bulgaria, for the Research Project VU-TN-09/2005 is gratefully acknowledged.

-20

0

20

40

60

80

100

120

0 100 200

300 400 500 600 Temperature T, 0C

Hea

t Flo

w q

, mJ/

min

K

K K

HFAS5

HFAS5

AS5

AS5

HFAS5

KCSE

CSE

dT/dt = 10 K/min

Endothermic effects

Exothermic effects

Temperature T, 0C

-100

-90

-80

-70

-60

-50

-40

-30

-20

-10

0 0 100 200 300 400 500 600

K

CSE

CSE K

AS5

HFAS5

HFAS5

AS5

Zone A Zone B

Loss

of M

ass (

deri

ved)

∆M

, %

ХХ конгрес на хемичарите и технолозите на Македонија 20th Congress of Chemists and Technologysts of Macedonia

Ohrid 2008

Fig. 3. Parallel between the DSC - thermograms of natural basic pine wood (Pinus sylvestrum) and FR pine wood

treated by plasma aided impregnation

Table 2

Thermal effects

Pine sample (K) CSE impregnation (CSE) Surfactant aided impregnation (AS5)

Plasma aided impregnation (HFAS5)

Temperature Enthalpy Temperature Enthalpy Temperature Enthalpy Temperature Enthalpy 0C kJ/g 0C kJ/g 0C kJ/g 0C kJ/g

36.2 27.4 26.0 28.8 Endo thermal 132.5 - 5.516 227.4 - 1.020 227.0 - 1.572 221.9 - 1.427

IP 132.5 227.4 227.0 221.9 132.5 227.4 227.0 221.9 Exo

thermal 331.8 1.709 277.0 0.840 297.1 1.022 269.2 0.645

331.8 277.0 297.1 269.2 Exo thermal 600.0 17.816 600.0 9.671 600.0 8.717 600.0 7.477

132.5 277.0 227.0 221.9 Exo thermal 600.0 19.525 600.0 10.512 600.0 9.739 600.0 8.122

References [1] P. D. Dineff and L. G. Kostova, Method of Plasma-Chemical Modification. Patent WO2006/133524 A3. [2] V. Repellin and R. Guyonnet, Evaluation of Heat-Treated Wood Swelling by Differential Scanning Calorimetry in Relation to Chemical Composition, Holzforschung, Vol. 59, pp. 28÷34, 2005.

Smoldering Flaming Glowing H

eat

Flow

q, m

J/m

in

-20

0

20

40

60

80

100

120

300 400 500 600 0 100

200

468.8331.8

195.0 258.1 497.4129.0

76.7

132.5

Ignition point

HF_CSE_A5 (FR Wood)

221.9 Ignition

point

68.2 Peak L (exo)

Peak N (exo)

Peak A (endo)

Peak B (endo)

Peak C (endo)

Peak A (endo)

Peak L (exo)

Peak N (exo)

Dehydration Flammable Volatile Maters

Chars Ash

Wood: White pine

Fire Retardant Wood

Desorbtion of Gases

Temperature T , 0C

Flash point

Burning point

Non-Flammable Volatile Maters

Wood

Endothermic Effects

Exothermic Effects 268.6

222.6

349.0Peak M

(exo)