Porous Cross-linked Poly(ethylene glycol) diacrylate Micro-particles Prepared by Low Temperature Photopolymerization

By : Kemin Wang, Lifei He, Shan Jiang, Qiang Yu

Page No: 753-158

Abstract
We reported a new strategy to prepare porous micro-particles based on low temperature photopolymerization of freezing suspension. A series of porous cross-linked poly(ethylene glycol) diacrylate (PEGDA) micro-particles are formed as sample. The morphology and pore diameter of such micro-particles are characterized by scanning electron microscope (SEM) and mercury intrusion porosimetry. The results indicated the diameter of the prepared micro[1]particles ranged from 60ìm to 160mm. The micro-particle diameter increased with the increase of concentration of PEGDA/water solution. The morphology and micro-particle diameter of porous particle was also influenced by stirring speed and stirring time. This approach will open a new door for the preparation of porous micro-particles.

Authors :
Kemin Wang, Lifei He, Shan Jiang and Qiang Yu : School of Materials Science and Engineering, Jiangsu Collaborative Innovation Center of Photovolatic Science and Engineering, Changzhou University, Changzhou 213164, PR China