Structure of composite films containing polyaniline studied by DSC

被引：12

作者：

Tsocheva, D ^{[1
]}

Tsanov, T

Terlemezyan, L

机构：

[1] Bulgarian Acad Sci, Inst Polymers, BU-1113 Sofia, Bulgaria

[2] Univ Natl & World Econ, Dept Commod Sci, Sofia, Bulgaria

来源：

JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY | 2001年 / 66卷 / 02期

关键词：

composite films; crystallinity; differential scanning calorimetry; dodecylbenzenesulfonic acid; ethylene-co-vinyl acetate copolymer; glass transition; polyaniline;

D O I：

10.1023/A:1013182532152

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

A structural study of conductive composite films consisting of ethylene-co-vinyl acetate (EVA) copolymer, polyaniline (PANI) and dodecylbenzenesulfonic acid (DBSA), a part of which being complexed with PANI, was performed by using differential scanning calorimetry (DSC) and presented for the first time. An additional crystalline phase is formed during the film formation by thickening EVA chain-folded lamellae with participation of 'free' DBSA molecules at lower net PANI content (up to 5 mass%) and of both 'free' and complexed DBSA molecules (up to 7.5 mass%). At higher PANI content PANI-DBSA complex starts to form its own crystals and at 17.5 mass% of PANI mixed crystals of EVA with 'free' DBSA alkyl chains are preferably formed. It is also found that the Fox's equation correlating the glass transition temperature of a miscible blend system with its composition can be actually used in estimating the miscibility of EVA/PANI blends no matter the presence of DBSA.

引用

页码：415 / 422

页数：8

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