CONJUGATED IONIC POLYACETYLENES .4. POLYMERIZATION OF ETHYNYLPYRIDINES WITH BROMINE

被引：51

作者：

SUBRAMANYAM, S ^{[1
]}

BLUMSTEIN, A ^{[1
]}

LI, KP ^{[1
]}

机构：

[1] UNIV MASSACHUSETTS,DEPT CHEM,POLYMER PROGRAM,LOWELL,MA 01854

来源：

MACROMOLECULES | 1992年 / 25卷 / 08期

关键词：

801 Chemistry - 804 Chemical Products Generally - 815 Polymers and Polymer Science;

D O I：

10.1021/ma00034a001

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 novel method for polymerization of the acetylenic bond in 2-ethynylpyridines is described. Formation of a donor-acceptor complex between the pyridine ring in the monomer and molecular bromine provides sufficient activation for the acetylenic triple bond to undergo spontaneous polymerization. The products obtained are substituted polyacetylenes with extensively conjugated backbones, wherein the side group pyridine rings are complexed to bromine in a 1:1 ratio. They are black or brown amorphous solids soluble in polar solvents, indicative of their ionic nature. Doping with acceptors such as iodine resulted in a substantial increase in their electrical conductivity compared to the undoped state.

引用

页码：2065 / 2069

页数：5

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