共聚物
二乙烯基苯
苯乙烯
材料科学
试剂
高分子化学
热稳定性
聚合物
氯化铝
化学工程
铝
化学
有机化学
复合材料
工程类
作者
J. Hradil,Eliška Králová
出处
期刊:Polymer
[Elsevier]
日期:1998-11-01
卷期号:39 (24): 6041-6048
被引量:51
标识
DOI:10.1016/s0032-3861(98)00057-3
摘要
This paper describes a method of preparation of permanently porous functionalized styrene copolymers by the chemical transformation of gel or macroporous styrene–divinylbenzene copolymers. As a crosslinker, tetrachloromethane was used in the presence of a Friedel–Crafts catalyst (aluminium or ferric chloride). By the modification of the macroporous copolymers, very high surface area resins, equivalent to Davankov's hypercrosslinked resins, have been obtained. The post-crosslinked polymers show high specific surface areas, a narrow distribution of small pores, and good mechanical stability and thermal resistance. The modification of the gel-like copolymers, because of the slow reaction rate and restricted reagent diffusion, produced copolymers with only very modest surface areas.
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