Synthesis in pilot plant scale and physical properties of sulfonated polystyrene

被引：128

作者：

Martins, CR ^{[1
]}

Ruggeri, G ^{[1
]}

De Paoli, MA ^{[1
]}

机构：

[1] Univ Estadual Campinas, Inst Quim, BR-13084971 Campinas, SP, Brazil

来源：

JOURNAL OF THE BRAZILIAN CHEMICAL SOCIETY | 2003年 / 14卷 / 05期

关键词：

sulfonation reaction; physical and thermal properties; polystyrene;

D O I：

10.1590/S0103-50532003000500015

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The homogenous sulfonation of polystyrene was developed in a pilot plant scale producing polymers with different sulfonation degrees (18 to 22 mole % of sulfonated styrene units). The reaction yield depends chiefly on the concentration ratio of acetyl sulfate and polystyrene. The morphological and thermal properties of the sulfonated polystyrene obtained by homogeneous sulfonation were studied by means of scanning electron microscopy, differential scanning calorimetry and thermogravimetry. The glass transition temperature of sulfonated polystyrene increases in relation to pure polystyrene and DeltaCp was evaluated in order to confirm the strong interactions among the similar toSO(3)H groups.

引用

页码：797 / 802

页数：6

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