### The effect of 60Co irradiation on the properties of polyarylacetylene from prepolymer of arylacetylene

ZHU Changjin1,2  YU Ruobing1,2  WU Yongsheng1,2  LIU Shengping1,2  JIAO Zheng3

1. 1 (School of Material Science and Engineering, East China University of Science and Technology, Shanghai 200237, China)
2 (Shanghai Key Laboratory of Advanced Polymeric Materials, Shanghai 200237, China）
3 (School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China)
• Received:2012-06-26 Revised:2012-08-13 Online:2012-12-20 Published:2014-09-09

Abstract:

Prepolymer of arylacetylene and Polyarylacetylene (PAA) were irradiated by 60Co γ-rays to investigate the effect of irradiation on their properties. DSC and TGA were applied to study the thermal polymerization process of prepolymer of arylacetylene and the performance of PAA. The results show as follows: (1) The curing enthalpy of prepolymer of arylacetylene irradiated by 60Co γ-rays is depressed; (2) The thermal stability of pre-irradiation thermal polymerizated PAA is better than directly thermally polymerized PAA; (3) The thermal performance of PAA can be improved by post-irradiation treatment. It is deduced that the thermal performance of PAA can be effectively improved by 60Co irradiation.

CLC Number:

• O632.17，TL99，TQ324.8