一种复合二氧化钛大孔共聚物的合成及其在扩张床吸附中的应用(Ⅰ)基质合成及其特性  

PREPARATION AND PROPERTY OF COMPOSITE TiO_2-MACROPOROUS COPOLYMER AND ITS APPLICATION FOR EXPANDED BED ADSORPTION(Ⅰ) MATRIX SYNTHESIS AND POROUS STRUCTURE

作　　者：钱建华[1] 张达中[2] 刘坐镇[1] 雷引林[3] 姚善泾[3] 邬行彦[1] 

机构地区：[1]华东理工大学生物反应器工程国家重点实验室,上海200237 [2]华东理工大学气流粉碎中心,上海200237 [3]浙江大学化学工程与生物工程学系,浙江杭州310027

出　　处：《化工学报》2003年第5期676-681,共6页CIESC Journal

摘　　要：以甲基丙烯酸缩水甘油酯和双甲基丙烯酸乙二醇酯作单体 ,在致孔剂存在下通过悬浮聚合将经过表面改性处理的二氧化钛超细颗粒包埋其中 ,制得一种密度增大的复合二氧化钛大孔共聚物 (GET) ,作为扩张床吸附基质 .研究了二氧化钛添加量、交联剂用量。A macroporous copolymer GET to be used as the matrix for expanded bed adsorption(EBA)was synthesized by suspension polymerization in the presence of porogenic agents from glycidyl methacrylate(GMA)and ethylene dimethacrylate (EDMA) with surface-modified superfine TiO 2 embedded.In this paper, the effects of the amount of TiO 2, the crosslinking degree, the amount of porogenic agent and their proportion on the copolymer wet true density and its porous structure,such as specific surface area, average pore diameter and pore volume were investigated.

关 键 词：甲基丙烯酸缩水甘油酯 二氧化钛 基质 

分 类 号：O636[理学—高分子化学] TQ424.3[理学—化学]