Electrically conductive and fluorescent poly[1,4-bis(3-alkyl-2-thienyl)phenylenes]: syntheses and preliminary characterization aspects

被引：34
|
作者：
Ng, SC [1 ]
Xu, JM [1 ]
Chan, HSO [1 ]
机构：
[1] Natl Univ Singapore, Dept Chem, Singapore 119260, Singapore
来源：
SYNTHETIC METALS | 1998年 / 92卷 / 01期
关键词：
poly[1,4-bis(3-alkyl-2-thienyl)phenylene; conductivity; fluorescence quantum yield; thermal stability;
D O I：
10.1016/S0379-6779(98)80019-2
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A series of polymers containing alternating phenylene and symmetrically substituted bithiophene repeat units have been synthesized and characterized using UV-Vis absorption spectroscopy, fluorescence emission spectroscopy, conductivity measurement and thermal analyses. The results reveal that the polymers have a bandgap energy of 2.5 eV and a fluorescence quantum yield of up to 26% with respect to quinine sulfate. The polymers show a maximum conductivity of 0.2 S cm(-1) upon doping with I-2 and display good thermal stability in both neutral and doped states. The influence of alkyl chain size on conductivity, spectral behavior and thermal stability is discussed. (C) 1998 Elsevier Science S.A.
引用
收藏
页码：33 / 37
页数：5
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