期刊
POLYMER
卷 54, 期 2, 页码 601-606出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.polymer.2012.12.008
关键词
Synthesis; Optical property; Heterocycle
资金
- Sichuan University [2012SCU11009]
A highly refractive and transparent poly(arylene sulfide sulfone) (PASS) containing pyrimidine (or pyridazine) unit has been developed. The polymer was prepared by a polycondensation reaction of 4,4'-dimercaptodiphenyl sulfone (DMDPS) and 4,6-dichloropyrimidine (DCPM) (or 3,6-dichloropyridazine (DCPD)). They showed good thermal stabilities such as a relatively high glass transition temperature of 193-202 degrees C and a 5% weight loss temperature (T-5%) of 370-372 degrees C. The optical transmittance of the polymer at 450 nm is higher than 81%. The heterocycles unit and plural -S- linkages provides the polymer with a high refractive index of 1.737-1.743 at 633 nm and a low birefringence of 0.003-0.004. (C) 2012 Elsevier Ltd. All rights reserved.
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