A processible poly(phenyleneethynylene) with strong photoluminescence: Synthesis and characterization of poly[(m-phenyleneethynylene)-alt-(p-phenyleneethynylene)]

被引：89
作者：
Pang, Y [1 ]
Li, J
Hu, B
Karasz, FE
机构：
[1] Clark Atlanta Univ, Dept Chem, Atlanta, GA 30314 USA
[2] Clark Atlanta Univ, Ctr High Performance Polymers & Composites, Atlanta, GA 30314 USA
[3] Univ Massachusetts, Dept Polymer Sci & Engn, Amherst, MA 01003 USA
来源：
MACROMOLECULES | 1998年 / 31卷 / 19期
关键词：
D O I：
10.1021/ma9807926
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
The synthesis of poly[(m-phenyleneethynylene)-alt-(p-phenyleneethynylene)] via the Heck-type coupling of 2,5-bis(hexyloxy)-1,4-diiodobenzene with 1,3-diethynylbenzene was investigated. The combination of high molecular weight, normal polydispersity, and monomodal distribution suggested that cyclic products were not formed during the polymerization. The observed low Mark-Houwink exponent was rationalized in terms of the bond angles at the m-phenylene, which was significantly smaller than that of the 2,5-thienylene unit.
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收藏
页码：6730 / 6732
页数：3
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