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Polymer (Korea), Vol. 28, No. 6, pp 524-530 (2004) / Vâ, \28Ì \6x, 2004, pp 524-530 41#Ý# ¼ XA| ´ Ä Ð ÅÐ Ô Ä 8 Í ´ `\¼ ìé, ` Q© ¨|¨ û X È$. 1,2 `\¼ è@ ¼ä¼ ûÔ t`\ ` Q© 1965 Matsumoto Ochi ´\ Ø X Ô ° \ \\ ,Ø ¼d Ø´ø¼ ìé , Å Ð ¬ p@ ¼ U ÄÐ ¼ ä ¼ ©q @$ . 3 70@ ´ t`\ (emulsifier-free) ` Q© @ 0¬@ ñ \È ÉXô Ô°, ÅÐ ´\ ÅÐ $ U äÔ D p @ ÄÐ A| ð ©X ô Èp x ´ è ¸\ 0 ¬@ X q)+Mu#})Ù,-ù#]#q)m#Õ# í½##a-MÕ#Ùñ#Õ#6®# ½®-¯½-¯}ò¯-Ê .% # Ñ@# ÄÐä5</# -<p`0¬# QDÐì# 0¬|p# +5337#;#6¼# QX/#5337# 44#7¼# ,# Preparation of Polystyrene Particles Containing Poly(ethylene glycol) Groups and Their Surface Charge Characterization in Dielectric Medium Seong Hun Kim, Bae Joong Kim, Dae Ik Kwon, and Ki Hong Park* % Department of Molecular System Engineering, Hanyang University, Seoul 133-791, Korea *Optoelectronics Material Research Center, Korea Institute of Science and Technology, P.O.Box 131, Cheongryang, Seoul 136-791, Korea † e-mail : [email protected] (Received August 3, 2004;accepted November 4, 2004) 5¨¹ä0L, 4ì(8L @ì) ¬ôH´ø (PEG-MMA) y 4ì(8L @ì) T¬ôH´ ø (PEG-diMMA)¼ Qq $\ t`\ (emulsifier-free) ` Q©, ´ 8L @ìp¼ V Ô 4ìä0L ÅÐ¼ ©q@, ´Àp ð ´°Xô Ä \°@$. ÄÐ Ä FT-IR Ä Qp ¬°¼ ¸@, QðÀ Å Ä]p <ì DÐ D8ý (SEM) ´é, ÅÐ ¬p Äð ¼ °ì@$. ä0L @, 5(ô PEG-MMAÔ 2ð5 mol%, PEG-diMMAÔ 1 mol% Í À< \ ¼ ÅÐ ¬p¼ û X È$. ©q\ ÅÐ ´ D¼ `D $ ô\ ELS-8000 Qð ÀÕ ´é, \ , aU@$. ä0L @, PEG-MMA 5 mol%\ 183 mV < Ò \ ,´ aUX$. ,-897,.9¹Polystyrene particles (PS) with poly(ethylene glycol) units on surface were formed by an emulsifier-free emulsion polymerization using styrene, poly(ethylene glycol) methacrylate (PEG-MMA) or poly(ethylene glycol) dimethacrylate (PEG-diMMA) at pH 7, and followed by freeze-drying to give the corresponding powders. The structures of PS particles were confirmed by FT-IR spectroscopy, and the particle size and distribution the PS particle were observed by scanning electron microscopy and particle analyzer. Monodisperse polymer particles were obtained at a concentration of PEG-MMA 2ð5 mol% or PEG-diMMA 1 mol% relative to styrene. The highest zeta potential of polymer surface was measured to be 183 mV at a polymer of PEG-MMA 5 mol%, which was measured in dielectric medium by means of ELS- 8000 dynamic light scattering. Keywords¹emulsifier-free emulsion polymerization, poly(ethylene glycol) methacrylate, poly(ethylene glycol) dimethacrylate, polystyrene powders, zeta potential.

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Page 1: 11 524-530 2004.11 XXXX XXXXXXXXXXXX ~ XXXXXXXX3XX · ˛ DSC thermograms of polymer powders at a heating ate of 10 /min (second heating): (a) PEG-diMMA 1 mol%, (b) PEG-diMMA 2 mol%,

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�� Polymer (Korea), Vol. 28, No. 6, pp 524-530 (2004) �

�� , �28� �6�, 2004�, pp 524-530 �

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�� 1965� Matsumoto� Ochi� ��

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Preparation of Polystyrene Particles Containing Poly(ethylene glycol) Groups and Their Surface Charge Characterization in Dielectric Medium

Seong Hun Kim, Bae Joong Kim, Dae Ik Kwon, and Ki Hong Park*� Department of Molecular System Engineering, Hanyang University,

Seoul 133-791, Korea *Optoelectronics Material Research Center, Korea Institute of Science and Technology,

P.O.Box 131, Cheongryang, Seoul 136-791, Korea †e-mail : [email protected]

(Received August 3, 2004;accepted November 4, 2004)

��, ��(�� ) �� (PEG-MMA) �� (�� ) ��

� (PEG-diMMA)� �� (emulsifier-free) �� , �� . �� FT-IR �� , �� (SEM) ��

�� . �� PEG-MMA� 2�5 mol%, PEG-diMMA� 1 mol% �� . �� ELS-8000 �

�� . �� PEG-MMA 5 mol%�� 183 mV� �� . ��Polystyrene particles (PS) with poly(ethylene glycol) units on surface were formed by an emulsifier-free emulsion polymerization using styrene, poly(ethylene glycol) methacrylate (PEG-MMA) or poly(ethylene glycol) dimethacrylate (PEG-diMMA) at pH 7, and followed by freeze-drying to give the corresponding powders. The structures of PS particles were confirmed by FT-IR spectroscopy, and the particle size and distribution the PS particle were observed by scanning electron microscopy and particle analyzer. Monodisperse polymer particles were obtained at a concentration of PEG-MMA 2�5 mol% or PEG-diMMA 1 mol% relative to styrene. The highest zeta potential of polymer surface was measured to be 183 mV at a polymer of PEG-MMA 5 mol%, which was measured in dielectric medium by means of ELS-8000 dynamic light scattering. Keywords�emulsifier-free emulsion polymerization, poly(ethylene glycol) methacrylate, poly(ethylene glycol)

dimethacrylate, polystyrene powders, zeta potential.

Page 2: 11 524-530 2004.11 XXXX XXXXXXXXXXXX ~ XXXXXXXX3XX · ˛ DSC thermograms of polymer powders at a heating ate of 10 /min (second heating): (a) PEG-diMMA 1 mol%, (b) PEG-diMMA 2 mol%,

Polymer (Korea), Vol. 28, No. 6, 2004� Polystyrene Particles Containing PEG Groups � ��

��, �28� �6�, 2004� ��(�� )��

��,4,5 ��

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� �� 500 mL 3� ��

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PEG-MMA� �� (70 �)� ��

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rpm�� 20� ��. 70 �� 20 g

(0.174 mol) �� 5� �� 0.7 g ��

�� 6� �� . PEG-MMA� ��

� �� PEG-MMA 1.65

g (3.48 mmol), 2.48 g (5.22 mmol), 3.30 g (6.96 mmol), 4.13 g

(8.70 mmol) �� PM-1, PM-

2, PM-3, PM-4� �� (Table 1).

�� PM ��

�� . PEG-diMMA� ��

�� PEG-MMA 0.48 g (0.87 mmol),

0.96 g (1.74 mmol), 1.91 g (3.48 mmol), 3.83 g (6.96 mmol)

�� PDM-1, PDM-2, PDM-3,

PDM-4� �� (Table 2).

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�� (Membrane Filtration Products�, Cellu Sep

Page 3: 11 524-530 2004.11 XXXX XXXXXXXXXXXX ~ XXXXXXXX3XX · ˛ DSC thermograms of polymer powders at a heating ate of 10 /min (second heating): (a) PEG-diMMA 1 mol%, (b) PEG-diMMA 2 mol%,

�� Kim et al. Polymer (Korea), Vol. 28, No. 6, 2004�

�� , �28� �6�, 2004��

T4, Mw cut-off 12000�14000) �� . �

�� 2 �� (Vision �

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mL � �� (Cole-

Parmer�, 8853)� �� 2� ��

� �� , �� (�� Lab �, FD 5505S)

� �� 7� ��.

��

� �� Perkin Elmer�� spectrum GX FT-IR ��

� SENS IR technology �� ATR ��

��. �� (Tg)� ��

�� (DSC) (Dupont�, DSC 2010)�

��. ��

�� (SEM) (HITACHI �, S-

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�� Otsuka�� ELS-8000 �� .

��

�� PEG-MMA�

�� , ��

�� , ��

�� , ��

� PEG�� . � ��

�� PEG� �� , ��

�� PEG-MMA� �� PEG-diMMA� ��

�� . ��

�� PEG-MMA� � ��

�� . PM-1, PM-2, PM-3, PM-4 �

� �� , �� , ��

��. Table 1� � �� , �� SEM

�� Figure 1� ��. SEM ��

� PEG-MMA� �� 2�5 mol%�

�� 300�310 nm� ��

� � � ��. �� PEG- MMA� �� 2 mol%� �

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��

�� . PEG-MMA� ��

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�� . Figure 2�

�� PEG-MMA� �� FT-IR

� �� . ��

(�� C�C, 1500 cm-1 ��)�� PEG-MMA� ��

�� 1727 cm-1�� C�O �� 1111 cm-1��

C-O-C stretching �� .

PEG-MMA �� C�O �� C-O-C ��

� �� , �� PEG-

MMA� �� PEG-MMA

�� .

�� PEG-diMMA�

PEG��

��, ��

� ��. �� PEG-diMMA

� � �� . PDM-1,

PDM-2, PDM-3, PDM-4 �� , �� ,

�� . Table 2� � ��

��, �� SEM �� Figure 3� ��

�. SEM �� PEG-

diMMA 0.5 mol%��

�� , 1 mol%�� 410

nm� �� . ��

� 2 mol% ��

�� .

PEG-diMMA� �� , ��

�� a

S a m p le C o d e s

S ty re n e (m o l)

P E G -M M A (m o l% )b

p H D

(n m )c S .D .

(n m )d P M -1 0 .1 7 4 2 7 3 1 0 6 2 P M -2 0 .1 7 4 3 7 3 0 7 6 1 P M -3 0 .1 7 4 4 7 3 0 6 6 3 P M -4 0 .1 7 4 5 7 3 0 0 7 5

a Polymerization condition: KPS 0.7 g, water 200 g, 6 hours, 250 rpm, 70�1 �. b mol% relative to styrene. c Number-average diameter of PS powders. d Standard deviation.�

�� a

S am ple C odes

S ty rene (m ol)

P E G -diM M A (m ol% )b

pH D

(nm )c S .D .

(nm )d P D M -1 0 .174 0 .5 7 - - P D M -2 0 .174 1 7 410 52 P D M -3 0 .174 2 7 400 102 P D M -4 0 .174 4 7 - -

aPolymerization condition: KPS 0.7 g, water 200 g, 6 hours, 250 rpm, 70�1 �. bmol% relative to styrene. cNumber-average diameter of PS powders. dStandard deviation.

Page 4: 11 524-530 2004.11 XXXX XXXXXXXXXXXX ~ XXXXXXXX3XX · ˛ DSC thermograms of polymer powders at a heating ate of 10 /min (second heating): (a) PEG-diMMA 1 mol%, (b) PEG-diMMA 2 mol%,

Polymer (Korea), Vol. 28, No. 6, 2004� Polystyrene Particles Containing PEG Groups � ��

��, �28� �6�, 2004� ��(�� )��

�� (��)� ��

�� . �� PEG-diMMA

�� 410�� 400 nm ��

� � ��. �� PEG-diMMA� ��

�� PEG-MMA� ��

�� , ��

�� . ��

� �� PEG-

diMMA� �� 1 mol% �

�� , � �� PEG-

MMA� �� . Figure 4� pH 7

�� PEG-diMMA� ��

FT-IR � �� . PEG-MMA� ��

� Figure 2� ��

�, PEG-MMA� �� PEG-diMMA ��

�� C�O �� (1727 cm-1)� C-O-C �� (1111 cm-1)

� � � � � � � � � � �

(a) PM-1 (b) PM-2 �

� � � � � � � �

(c) PM-3 (d) PM-4 �

!��" �� Scanning electron micrographs of poly(styrene-co-PEG-MMA); mol% relative to styrene (a) PEG-MMA 2 mol% (PM-1), (b) PEG-MMA 3 mol% (PM-2), (c) PEG-MMA 4 mol% (PM-3), and (d) PEG-MMA 5 mol% (PM-4).�

!��" �� FT-IR spectra of poly(styrene-co-PEG-MMA); mol% relative to styrene (a) PEG-MMA 0.5 mol%, (b) PEG-MMA 3 mol%, (c) PEG-MMA 4 mol%, and (d) PEG-MMA 5 mol%.�

��

Wavenumber (cm-1)

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ittan

ce (

%)

Page 5: 11 524-530 2004.11 XXXX XXXXXXXXXXXX ~ XXXXXXXX3XX · ˛ DSC thermograms of polymer powders at a heating ate of 10 /min (second heating): (a) PEG-diMMA 1 mol%, (b) PEG-diMMA 2 mol%,

�� Kim et al. Polymer (Korea), Vol. 28, No. 6, 2004�

�� , �28� �6�, 2004��

� �� .

�� PEG-diMMA

� �� , ��

�� . ��

�� PDM �� (��/PEG-diMMA)� 1-��-2-�

�� (NMP)� �� .

�� PEG-diMMA 0.5 mol% (PDM-1)� NMP

� ��, PEG-diMMA 1 mol% (PDM-2) ��

�� NMP� �� . �� Figure

5� �� (PDM-2

�PDM-4)� �� 93�99 � ��

��. PEG-diMMA� ��

�� , ��

�� , ��

�� 99�� 93 ��

��. �� PEG-diMMA�

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�� , �� PEG-diMMA� ��

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� � � � � � �

(a) PDM-1 (b) PDM-2��

� � � � � � �

(c) PDM-3 (d) PDM-4��!��" ��#� Scanning electron micrographs of poly(styrene-co-PEG-diMMA); mol% relative to styrene (a) PEG-diMMA 0.5 mol% (PDM-1), (b) PEG-diMMA 1 mol% (PDM-2), (c) PEG-diMMA 2 mol% (PDM-3), and (d) PEG-diMMA 4 mol% (PDM-4).�

!��" �� FT-IR spectra of poly(styrene-co-PEG-diMMA); mol% relative to styrene (a) PEG-diMMA 0.5 mol%, (b) PEG-diMMA 1 mol%, (c) PEG-diMMA 2 mol%, and (d) PEG-diMMA 4 mol%.�

��

Wavenumber (cm-1)

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ce (

%)

Page 6: 11 524-530 2004.11 XXXX XXXXXXXXXXXX ~ XXXXXXXX3XX · ˛ DSC thermograms of polymer powders at a heating ate of 10 /min (second heating): (a) PEG-diMMA 1 mol%, (b) PEG-diMMA 2 mol%,

Polymer (Korea), Vol. 28, No. 6, 2004� Polystyrene Particles Containing PEG Groups � ��

��, �28� �6�, 2004� ��(�� )��

�� .

��

� �� . ��

� �� , ��

�� . ��

�� , � ��

�� . ��

�� halocarbon®

0.8 (�� 1.7)� isopar® G (�� 0.8)� 1:1.7� ��

�� ( 1.13)� ��

��. ��

�� , �� (ELS-

8000)� ��

�� Table 3� ��. ��

�� 30 mV

�� . Table 3�� , PEG-

MMA� �� 1�� 5 mol%� �� , ��

�� 104�� 183 mV� �� . PEG- MMA 5

mol% �� , ��

�� , ��

� �� . PEG ��

�� PEG-MMA 5 mol%�� 183 mV, ��

� 2.21�10-5� �� . ��

��

� �� . ��

�� 100 mV��

�, �� 120�130 mV� ��

� ��, � �� 183 mV� � ��

� �� . �� PEG-diMMA� ��

� �� PEG-MMA� ��

� ��. �� 1 mol%��

�� 91 mV� �� ,

1.092�10-5� �� . � ��

�� .

PEG- diMMA� ��

� ��

PEG- diMMA 2 mol% ��

�� . ��

�� PEG-diMMA��

�� PEG-MMA� ��

��. PEG-diMMA� ��

�, �� , ��

�� (loop)��

��, PEG-diMMA� ��

�� .

��

�� (PEG-MMA �� PEG-diMMA)� �

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� �� . ��

� PEG-MMA� �� 2�5 mol%�

� ��

�� . �� PEG-diMMA�

�� PEG-MMA ��

�� , ��

�� 1 mol% � � �

��. �� , PEG-diMMA�

��

� �� PEG� ��

� � � ��. ��

�� , PEG-MMA� 5 mol%�� 183 mV

� �� , 2.21�10-5� ��, �� PEG-

diMMA� �� 1 mol%�� 91 mV� ��

� � 1.09�10-5� ��

��. ��

��

�� #�� $�� %� &' ��%��

(��%� �%�!�"� �

S a m p le C o d e s Z e ta P o te n tia l

(m V ) E le c tro p h o re tic M o b ility

(c m 2/V s) P M -1 1 0 4 1 .2 4�1 0 -5 P M -2 1 1 9 1 .4 2�1 0 -5 P M -3 1 3 8 1 .6 7�1 0 -5 P M -4 1 8 3 2 .2 1�1 0 -5

P D M -1 4 2 0 .5 1�1 0 -5 P D M -2 9 1 1 .0 9�1 0 -5 P D M -3 5 8 0 .6 9�1 0 -5 P D M -4 5 6 0 .6 2�1 0 -5

!��" �� DSC thermograms of polymer powders at a heating rate of 10 �/min (second heating): (a) PEG-diMMA 1 mol%, (b) PEG-diMMA 2 mol%, and (c) PEG-diMMA 4 mol%.�

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Page 7: 11 524-530 2004.11 XXXX XXXXXXXXXXXX ~ XXXXXXXX3XX · ˛ DSC thermograms of polymer powders at a heating ate of 10 /min (second heating): (a) PEG-diMMA 1 mol%, (b) PEG-diMMA 2 mol%,

�� Kim et al. Polymer (Korea), Vol. 28, No. 6, 2004�

�� , �28� �6�, 2004��

�� .

��

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Market Coupling PEG Nord / PEG Sud

PRŮMYSLOVÁ MAZIVA MOL MAZIVA MOL PRŮMYSLOVÁ

P1792, Polyethylene Glycol 4500, NF - Spectrum Chemical...Nosilen Nycoline Oxide Wax AN Oxyethylene polymer PEG PEG 3350 PEG 400 PEG 4000 PEG 6000DS Pluracol E Pluracol E 400, E 600,

hoshas.moh.gov.myhoshas.moh.gov.my/v4/attachments/article/69/Direktori... · Web viewPen Peg Tadbir (Eksekutif/Rekod/Stor) Pen Peg Farmasi, Pen Peg Penyediaan Makanan, Pen Peg Akauntan,

Freka PEG gastric Freka PEG - cobramedical.com

To PEG or Not to PEG