Investigation of the effect of substituent on the growth of polymer for 3-substituted polythiophenes via pyrolysis mass spectrometry

被引：5

作者：

Aslan, E ^{[1
]}

Toppare, L ^{[1
]}

Hacaloglu, J ^{[1
]}

机构：

[1] Middle E Tech Univ, Dept Chem, TR-06531 Ankara, Turkey

来源：

SYNTHETIC METALS | 2005年 / 155卷 / 01期

关键词：

conduction polymers; substituted polythiophenes; pyrolysis mass spectrometry; thermal degradation;

D O I：

10.1016/j.synthmet.2005.08.006

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this study, direct pyrolysis mass spectrometry analyses of electrochemically polymerized poly(decanedioic acid bis-(2-thiophen-3-yl-ethyl)ester) and poly(terepthalic acid bis-(2-thiophen-3-yl-ethyl)ester) were per-formed to investigate structural and thermal characteristics. It was found that when the ester linkages contain hydrocarbon chains, the growth of polymer occurred through both 2- and 5-positions. On the other hand, when the ester linkages contain more rigid groups such as phenyl, steric hindrance inhibited the growth of the polymer through 2-position and polymerization proceeded via coupling of thiophene moieties mainly at 5-position yielding a polymer with a lower conductivity. (C) 2005 Elsevier B.V. All rights reserved.

引用

页码：191 / 195

页数：5

共 21 条

[1] Synthesis and electrochromic properties of a symmetric polythiophene derivative: Decanedionic acid bis-(2-thiophene-3-yl-ether)ester and its copolymer with thiophene [J].