PHOTOCHROMISM OF POLYURETHANE CATIONOMERS WITH PENDENT AZO GROUPS

被引：19

作者：

BURUIANA, EC

BURUIANA, T

AIRINEI, A

ROBILA, G

机构：

[1] Institute of Macromolecular Chemistry "Petrǔ Poni, Jassy, 6600

来源：

ANGEWANDTE MAKROMOLEKULARE CHEMIE | 1993年 / 206卷

关键词：

D O I：

10.1002/apmc.1993.052060109

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 polyurethane cationomer with pendent azo groups bound to quaternary nitrogen atoms has been synthesized by polyaddition reaction between poly(tetramethylene oxide) (PTMO), 4,4'-bibenzyldiisocyanate and N-methyldiethanolamine, followed by quaternization of tertiary nitrogen with 4-(3-chloropropionyloxy)azobenzene. E-Z photoisomerization of azo chromophores by UV irradiation with a high pressure mercury lamp and Z-E thermal relaxation were studied both in solution and film. An azo urethane model and a synthetic mixture of polyurethane cationomer with azobenzene were used for comparison.

引用

页码：87 / 96

页数：10

共 17 条

[1] SYNTHESIS AND CHARACTERIZATION OF SOME 2,4'-DIBENZYLDIISOCYANATE IONIC POLYMERS .7. PHOTOCHROMIC BEHAVIOR OF IONENES WITH VIOLOGEN UNITS [J].