Synthesis and electro-optical properties of self-doped ionic conjugated polymers:: poly[2-ethynyl-N-(4-sulfobutyl)pyridinium betaine]

被引：34

作者：

Gal, YS ^{[1
]}

Jin, SH

Lim, KT

Kim, SH

Koh, K

机构：

[1] Kyungil Univ, Coll Gen Educ, Polymer Chem Lab, Kyungsan 712701, South Korea

[2] Pusan Natl Univ, Dept Chem Educ, Pusan 609735, South Korea

[3] Pukyong Natl Univ, Div Image & Informat Engn, Pusan 608739, South Korea

[4] Kyungpook Natl Univ, Dept Dyeing & Finishing, Taegu 702701, South Korea

[5] Pusan Natl Univ, Coll Pharm, Pusan 609735, South Korea

来源：

CURRENT APPLIED PHYSICS | 2005年 / 5卷 / 01期

关键词：

self-dopable; conjugated polymer; 2-ethynylpyridine; ionic polymer; cyclic voltamogram; luminescence;

D O I：

10.1016/j.cap.2003.11.076

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A noble self-dopable conjugated polybetaine, poly [2-ethynyt-N-(4-sulfobutyl)pyridinium betaine] (PESPB) was synthesized by the activated polymerization of 2-ethynylpyridine with 1,4-butanesultone without any additional initiator or catalyst. This polymerization proceeded at the condition of high temperature (130 degreesC). The polymer yield and inherent viscosity were 82% and 0.13 dl/ g, respectively. The chemical structure of PESPB was identified by various instrumental methods to have a conjugated ionic polymer bearing the sulfobetaine moieties. This poly(sulfobetaine) was found to be more soluble in salt solution than in salt-free solution. The photoluminescence peak is located at 530 nm corresponding to the photon energy of 2.34 eV. The photoluminescence intensity was increased as the temperature is increased. At 1 kHz and room temperature, the dielectric constant and electrical conductivity of PESPB were 5.7 and 3.5 x 10(-9) S/cm, respectively. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：38 / 42

页数：5