Synthesis of monodisperse crosslinked polystyrene microspheres  

作　　者：Jiang Kai Chen Sheng-Li Dong Peng Liu Renxiao 

机构地区：[1]State Key Laboratory of Heavy Oil Processing, School of Chemical Science ＆ Engineering, China University of Petroleum, Beijing 102249, China

出　　处：《Petroleum Science》2008年第4期375-378,共4页石油科学（英文版）

基　　金：National Basic Research Program of China(Grant No:2006CB932601);the Scientific Research Foundation for Returned Overseas Chinese Scholar,Ministry of Education

摘　　要：Monodisperse crosslinked polystyrene （CPS） particles were prepared through the normal emulsion polymerization method by adding crosslinker--divinylbenzene （DVB） into the reaction system after polystyrene （PS） particles grew to -80% of the final size. When the amount of crosslinker DVB added was less than 6.17 wt% based on styrene, the prepared CPS particles were spherical and uniform and the size of the CPS particles could be predicted through the normal emulsion method. The glass transition temperature （Tg） of the prepared CPS particles was higher than that of un-crosslinked PS particles and, the more crosslinker that was added, the higher the Tg of CPS Particles. The prepared CPS particles had strong resistance to organic solvents.Monodisperse crosslinked polystyrene （CPS） particles were prepared through the normal emulsion polymerization method by adding crosslinker--divinylbenzene （DVB） into the reaction system after polystyrene （PS） particles grew to -80% of the final size. When the amount of crosslinker DVB added was less than 6.17 wt% based on styrene, the prepared CPS particles were spherical and uniform and the size of the CPS particles could be predicted through the normal emulsion method. The glass transition temperature （Tg） of the prepared CPS particles was higher than that of un-crosslinked PS particles and, the more crosslinker that was added, the higher the Tg of CPS Particles. The prepared CPS particles had strong resistance to organic solvents.

关 键 词：Emulsion polymerization crosslinked polystyrene particle monodisperse particles 

分 类 号：O64[理学—物理化学]