Preparation and properties of polythiophene with phenylacetylene substituent

被引：9

作者：

Hayashi, H ^{[1
]}

Yamamoto, T ^{[1
]}

机构：

[1] Tokyo Inst Technol, Chem Resources Lab, Midori Ku, Yokohama, Kanagawa 2268503, Japan

来源：

KOBUNSHI RONBUNSHU | 2001年 / 58卷 / 05期

关键词：

pi-conjugated polymer; zelovalent nickel complex; zelovalent palladium complex; phenylacetylene; polythiophene;

D O I：

10.1295/koron.58.221

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Dehalogenative polycondensation of 2,5-dibromo-3-(4-alkylphenylethynyl) thiophenes with zerovalent nickel complexes afforded poly-[3-(4-alkylphenylethynyl) thiopbene-2,5-diyl]s in good yields. analytical, IR, and C-13 NMR data agreed with the suucture of the polymers. The UV-vis, absorption peak of the polymer appeared at a longer wavelength than the peaks of poly(3-alkylthiophene) and poly(3-arylthiophene). suggesting the formation of a larger effective pi -conjugation system due to negligible steric repulsion between the substituent and the neighboring thiophene unit. Cyclic voltammetry of the polymer indicated that alkylphenylethynyl substituent behaved as an electron-withdrawing unit.

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页码：221 / 226

页数：6

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