Vapor-phase polymerization of 3,4-ethylenedioxythiophene: A route to highly conducting polymer surface layers

被引：357

作者：

Winther-Jensen, B ^{[1
]}

West, K

机构：

[1] Tech Univ Denmark, Danish Polymer Ctr, Dept Chem Engn, DK-2800 Lyngby, Denmark

[2] Danish Polymer Ctr, Riso Natl Lab, DK-4000 Roskilde, Denmark

来源：

MACROMOLECULES | 2004年 / 37卷 / 12期

关键词：

D O I：

10.1021/ma049864l

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

A new synthetic route to poly-3,4-ethylenedioxythiophene (PEDT) with a conductivity exceeding 1000 S/cm is described. The method is based on base-inhibited vapor-phase polymerization, where a surface covered with ferric p-toluenesulfonate as oxidant mixed with a volatile base (pyridine) is exposed to 3,4-ethylenedioxythiophene (EDT) vapors. The base is added to suppress an acid-initiated polymerization of EDT, leading to a product with little or no conjugation. The product of the base-inhibited vapor-phase polymerization is confirmed to be virtually identical to PEDT obtained by wet chemical oxidation by both spectroscopic and electrochemical methods. A possible reaction scheme for the acid-initiated polymerization is discussed.

引用

页码：4538 / 4543

页数：6

共 17 条

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