摘要
以二乙烯基苯为交联剂，正十八醇为致孔剂，在过氧化苯甲酰引发下悬浮聚合苯乙烯、丙烯腈，制备苯乙烯-二乙烯基苯-丙烯腈交联高分子微球。用SEM（扫描电子显微镜）分析微粒平均粒径及形貌，红外光谱分析高分子微球的结构，原位生成磁性四氧化三铁并用磁天平表征磁响应性的变化，结果表明聚合物为粒径在0．5-7μm的稳定、多孔高分子微球。
A method for preparation of steady porous polymer microespheres with suspension polymerization is described. Experiments are performed in the toluene solution including acrylonitride monomer, styrene monomer, divinylbenzene cross-linking agent, benzoyl peroxide initiator and porogenic agent rroctadecanol. The properties of polymer microespheres are characterized by SEM, LR spectroscopy and magnetic balance. As a result, the steady porous polymer mieroespheres with the size from 0. 5μm to 7μm are obtained.
出处
《材料导报》
EI
CAS
CSCD
北大核心
2007年第2期146-147,153,共3页
Materials Reports
基金
国家自然科学基金联合基金资助项目(10476035)
关键词
悬浮聚合
多孔性
高分子微球
suspension polymerization, porosity, polymer mieroespheres
