Syntheses and optical properties of polyethers with azobenzene-type main chain

被引：1
|
作者：
Kim, MR [1 ]
Kim, HS
Kyung, CS
Sung, GY
Kim, JS
Ha, CS
Kwak, CH
Bae, IH
Lee, JK
机构：
[1] Pusan Natl Univ, Dept Polymer Sci & Engn, Pusan 609735, South Korea
[2] Yeungnam Univ, Dept Phys, Kyongsan 712749, South Korea
来源：
MOLECULAR CRYSTALS AND LIQUID CRYSTALS | 2000年 / 349卷
关键词：
azobenzene; polyether; optical properties; phase transfer catalyst; polycondensation reaction;
D O I：
10.1080/10587250008024857
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Polyethers (ABPEn. n=6 and 12) were synthesized by the polycondensation reaction of 2,2'-dihydroxynzobenzone and alpha,omega -dichloro alkane in the presence of a phase transfer catalyst. ABPE6 and ABFE12 had the average molecular weight (M-w) of 49,000 and 67,000, and the glass transition temperature (TB) of 112 degreesC and 110 degreesC, respectively. UV absorption spectrum of ABPE6 showed two absorption peaks with maxima at 370 nm and at 470 nm. Fluorescence emission spectrum of ABPE6 showed a peak with maximum at 669 nm.
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收藏
页码：27 / 30
页数：4
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