Preparation of a new poly(p-phenylene) type polymer, poly(pyrazine-2,5-diyl), with a coplanar structure

被引：29

作者：

Yamamoto, T

Fujiwara, Y

Fukumoto, H

Nakamura, Y

Koshihara, SY

Ishikawa, T

机构：

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

[2] Tokyo Inst Technol, Dept Chem & Mat Sci, Meguro Ku, Tokyo 1528550, Japan

来源：

POLYMER | 2003年 / 44卷 / 16期

关键词：

poly(pyrazine-2,5-diyl) poly(p-phenylene) type polymer; coplanar structure;

D O I：

10.1016/S0032-3861(03)00442-7

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Poly(pyrazine-2,5-diyl), PPyrz, was prepared by organometallic dehalogenative polycondensation of 2,5-dibromopyrazine. PPyrz was soluble in conc. H2SO4 and showed an eta/c value of 0.45 dl g(-1). PPyrz exhibited the UV-vis peak at the longest wavelength (lambda(max) = 439 nm) among the poly(p-phenylene) type polymers. The polymer afforded a simple CP-MAS solid C-13 NMR pattern with peaks at delta 143.3 and 148.5. Microwave-assisted synthesis was effective. (C) 2003 Elsevier Science Ltd. All rights reserved.

引用

页码：4487 / 4490

页数：4

共 19 条

[1] Nickel(0)-mediated coupling polymerizations via microwave-assisted chemistry [J].