文献类型：期刊文章

作　　者：阎卫东[1] 李丹[2,3] 容建华[2] 杨振忠[2]

机构地区：[1]河北工业大学化工学院高分子科学与工程研究所 [2]中国科学院化学研究所分子科学研究中心,高分子物理与化学国家重点实验室 [3]大庆石油学院石油化工系,安达151400

出　　处：《高等学校化学学报》

基　　金：国家自然科学基金 (批准号 :2 0 0 2 30 0 3)资助

年　　份：2002

卷　　号：23

期　　号：2

起止页码：330-332

语　　种：中文

收录情况：AJ、BDHX、BDHX2000、CAS、CSCD、CSCD2011_2012、EI、IC、JST、RCCSE、RSC、SCIE、SCOPUS、WOS、ZGKJHX、核心刊

摘　　要：A rigid silica colloidal crystal template was formed by self assembly of the monodispersed silica dispersion prepared according to Stber method. Within the interstitial void of the template, β diketonate titanium complexes[(dbm) 3Ti(OPh)/MAO] catalyzed polymerization of styrene was carried out to form syndiotactic polystyrene(sPS)/silica composites. The titled ordered macroporous syndiotactic polystyrene was achieved by chemical decomposition of the silica template with concentrated aqueous hydrofluoric acid, which was confirmed by SEM results. FTIR spectra indicated that all silica was removed from the composites in this study. DSC revealed that the as prepared macroporous sPS was significantly different from the bulk one, and the unique properties were inherent rather than from the enforcement effect by the silica template. Further investigation concerning the inherent microstrucutures about the molecular weight and its distribution, tacticity of the styrene etc . and their dependence on the confinement is in progress.

关 键 词：模板合成  间规聚苯乙烯 有序孔材料  二氧化硅胶体晶  

分 类 号：O632.13]