Preparation and characterization of three-dimen-sionally ordered macroporous polystyrene via atom-transfer radical polymerization  

作　　者：ZHANG Xu YAN WeiDong YANG HuiFang WANG BaiQuan 

机构地区：[1]Institute of Polymer Science and Engineering, Hebei University of Technology, Tianjin 300130, China [2]State Key Laboratory of Elemento-organic Chemistry, Nankai University, Tianjin 300071, China

出　　处：《Chinese Science Bulletin》2008年第24期3824-3828,共5页

基　　金：Supported by National Natural Science Foundation of China (Grant No. 50273009);Natural Science Foundation of Hebei Province (Grant No. E2007000052);Science Research Plan of Department of Education,Hebei Province (Grant No. 2007307);Doctor Open Foundation of Key Laboratory of Functional Polymer Material of Ministry of Education,Nankai University) (Grant No. 2006-007)

摘　　要：Three-dimensionally ordered macroporous polystyrene(3DOM PS) with pore size of 350 nm was fabricated using Cp2Co/Ethyl 2-bromoisobutyrate(EBiB) catalytic system by ATRP.The resulting polymers were detected by FT-IR,1H-NMR,SEM,and GPC.The microstructure of 3DOM PS was confirmed by FT-IR and 1H-NMR.SEM micrographs show that both silica spheres within the templates and pores in the 3DOM polystyrene are arranged in highly ordered fashion,and the shrinkage of the pores in the 3DOM PS is 24%.GPC curves show that the 3DOM PS possesses slightly lower Mn and narrow MWD compared with bulk one.This result indicats that living polymerization is different from non-living polymerizationin in the confined space.Three-dimensionally ordered macroporous polystyrene （3DOM PS） with pore size of 350 nm was fab- ricated using Cp2Co/Ethyl 2-bromoisobutyrate （EBiB） catalytic system by ATRP. The resulting polymers were detected by FT-IR, 1H-NMR, SEM, and GPC. The microstructure of 3DOM PS was confirmed by FT-IR and 1H-NMR. SEM micrographs show that both silica spheres within the templates and pores in the 3DOM polystyrene are arranged in highly ordered fashion, and the shrinkage of the pores in the 3DOM PS is 24%. GPC curves show that the 3DOM PS possesses slightly lower Mn and narrow MWD compared with bulk one. This result indicats that living polymerization is different from non-living polymerizationin in the confined space.

关 键 词：有序大孔聚合物 聚苯乙烯 原子传输 聚合作用 

分 类 号：O64[理学—物理化学]