高分子凝胶化反应的分形几何研究方法  

FRACTAL GEOMETRY METHODOLOGY FOR THE CHARACTERIZATION OF GELATION OF POLYMER

作　　者：左榘[1] 陈天红[1] 冉少锋[1] 梁德海[1] 牛爱珍[1] 何炳林[1] 

机构地区：[1]南开大学吸附分离功能高分子材料国家重点实验室

出　　处：《高分子材料科学与工程》1997年第S1期2-6,共5页Polymer Materials Science & Engineering

基　　金：国家自然科学基金;天津市自然科学基金;南开大学吸附分离功能高分子材料国家重点实验室资助

摘　　要：提出基于实验基础之上的高分子凝胶化反应的分形几何研究方法，即以苯乙烯－二乙烯苯凝胶化反应为例，由激光及小角Ｘ光散射技术测定反应中分子质量、尺寸及散射光强角度依赖性，经分形理论处理数据，以分数维参数定量描述化学反应，在更深层次上揭示了化学反应规律。he approaches are as follows: Using the copolymerization of styrenedivinylbenzene as an example, firstly, the molecular weights, sizes and the dependence of intensity scattered on angles were determined during this gelation by laser light scattering and samall angle Xray scattering, respectively; secondly, these data were processed with fractal theory, thirdly, the gelation was described quantitatively in terms of fractal dimension and finally the rule of gelation of polymer was revealed at the more essential level.

关 键 词：凝胶化反应 分形几何 苯乙烯-二乙烯苯 

分 类 号：O631[理学—高分子化学]