Poly(etherurethane) anionomers with azobenzene carboxylate groups: Synthesis and properties

被引：10

作者：

Buruiana, T ^{[1
]}

Buruiana, EC ^{[1
]}

机构：

[1] Romanian Acad, Petru Poni Inst Macromol Chem, Iasi 700487, Romania

来源：

JOURNAL OF APPLIED POLYMER SCIENCE | 2005年 / 96卷 / 02期

关键词：

azo polymers; ionomers; isomer/isomerization; polyurethanes;

D O I：

10.1002/app.21483

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 diol with a one-sided azobenzene-carboxyl group was prepared to be used for photosensible polymers synthesis. Azobenzene carboxyl containing polyurethane based on poly(tetramethylene oxide) diol of 2000 average molecular weight, 2,4-tolylene diisocyanate, and the mentioned azo diol, was obtained and characterized. Upon neutralization the acid form with metal acetate (Li+1, Ca+2) or triethylamine azo carboxylate anionomers with an improved phase separation were obtained. Viscometric measurements of diluted dimethylformamide solutions exhibited evidence of polyelectrolyte behavior. Some aspects of the trans-cis photoisomerization have been examined to design in future various dyed aqueous dispersions. (C) 2005 Wiley Periodicals, Inc.

引用

页码：577 / 582

页数：6

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