Supporting information

Encapsulation of Hydrophilic Payload by PU-PMF Capsule: Effect of Melamine-FormaldehydePre-polymer Content, pH and Temperature on Capsule Morphology

Ting Zheng1,3, Srikanth Pilla1,2,3*

1Department of Automotive Engineering, Clemson University, SC, 29607, USA2Department of Materials Science and Engineering, Clemson University, SC, 29634, USA3Clemson Composites Center, Clemson University, SC, 29607, USA

*Corresponding author: Srikanth Pilla (spilla@clemson.edu)

Figure S1. Schematic presentation of the dual-component capsule formation (a) and involved chemistries (b).

Figure S2. Phenomena of the PMF reaction as shown via plastic tubes, note the effects of pH both on the reaction rate and resultant morphology.

Figure S3. Phenomena of PMF reaction show via plastic tubes at different temperatures.

Figure S4. Additional SEM images for C50deg.

Figure S5. Additional SEM images for C70deg.