PHOTOPHYSICAL PROPERTIES OF POLY-2-PHENYL-5-(P-VINYL)-PHENYLOXAZOLE

被引:9
作者
MCINALLY, I [1 ]
SOUTAR, I [1 ]
STEEDMAN, W [1 ]
机构
[1] HERIOT WATT UNIV, DEPT CHEM, EDINBURGH EH14 4AS, MIDLOTHIAN, SCOTLAND
关键词
POLYPHENYLVINYLPHENYLOXAZOLE;
D O I
10.1002/pol.1977.170151019
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
In the reported experiments, 2-phenyl-5-(p-vinyl)phenyloxazole (POS) has been synthesized. Copolymers of POS with styrene and the homopolymer poly-POS have been prepared. The polymers have been characterized through measurements of fluorescence decay times (using synchrotron radiation for excitation) and examination of excimer formation in the homopolymer. Fluorescence decay times of 0. 6( plus or minus 0. 4) nsec and 9( plus or minus 0. 2) nsec have been recorded at 298 degree K in toluene solution for monomer and excimer, respectively. Poly-POS exhibits excimer formation characterized by an activation energy of 5. 9( plus or minus 0. 50kj/mole and a binding energy of 17. 0 ( plus or minus 1. 0) kJ/mole.
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页码:2511 / 2519
页数:9
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