STYRENE DIVINYLBENZENE COPOLYMERS - FORMATION OF POROUS STRUCTURE BY USING PRECIPITANTS AS DILUENTS IN SUSPENSION POLYMERIZATION

被引：36

作者：

COUTINHO, FMB

CID, RCA

机构：

[1] Instituto de Macromoléculas, Universidade Federal do Rio de Janeiro, Rio de Janerio, RJ 21945

来源：

EUROPEAN POLYMER JOURNAL | 1990年 / 26卷 / 11期

关键词：

D O I：

10.1016/0014-3057(90)90025-Y

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Styrene-divinylbenzene copolymers with porous structures were prepared by suspension polymerization using diluents during polymerization. These diluents, having different affinities for the copolymers, produced changes in their morphology. Various diluent compositions were employed in order to discover their influence on the porous structure of the copolymers. The proportion and type of diluents were varied. n-Heptane was used as a precipitant in association with isoamyl acetate and ethyl acetate. The morphological changes were evaluated by apparent density, specific area and porosity. A study was also made of the influence of the divinylbenzene content in the synthesis of the copolymers on their morphological characteristics. © 1990.

引用

页码：1185 / 1188

页数：4

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