Preparation of hemispherical polymer particles via phase separation induced by microsuspension polymerization |
| |
| Authors: | Tomoe Yamagami Takuya Tanaka Toyoko Suzuki Masayoshi Okubo |
| |
| Institution: | 1. Graduate School of Engineering, Kobe University, Rokko, Nada, Kobe, 657-8501, Japan
2. Smart Spheres Workshop Co., Ltd., 2-1-214-122, Koyo, Naka, Higashi-Nada, Kobe, 658-0032, Japan
|
| |
| Abstract: | Micrometer-sized, hemispherical polystyrene (PS) particles were successfully prepared by microsuspension polymerization of homogeneous styrene/hexadecane (HD) droplets dispersed in polyoxyethylene nonylphenyl ether (Emulgen 931) aqueous solution, followed by rapid removal of HD from formed PS/HD particles with a “Janus” structure. It was important for the formation of the morphology of Janus particles in thermodynamically stable state to carry out the polymerization slowly. The formation of by-product small PS particles by emulsion polymerization was suppressed by the additions of CuCl2 as a water-soluble inhibitor and NaCl to decrease the solubility of styrene in the aqueous phase. |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
