聚苯醚/聚苯乙烯共混物溶液浇铸膜的热演化行为  

Thermal Evolution Behavior of Solution-cast Film of PPO/PS Blends

作　　者：潘雁[1] 傅伟文[1] 薛锋[1] 程镕时[1] 罗远芳[1] 古菊[1] 

机构地区：[1]华南理工大学材料学院高分子研究所,广州510641

出　　处：《高等学校化学学报》2001年第7期1268-1270,共3页Chemical Journal of Chinese Universities

基　　金：国家教育部博士点基金 (批准号 :970 5 6 118);广东省高教厅基础研究基金

摘　　要：Thermal evolution behavior of solution cast film of Poly(2,6 dimethyl 1,4 phenylene oxide)(PPO)/polystyrene(PS) blend was investigated by conventional and modulated differential scanning calorimetry. It was found that the original PPO/PS blend film is actually composed by a crystalline PPO phase and a non crystalline compatible PPO PS phase. The phase segregated structure state(A) will evolve to non crystalline homogenous structure(B) by subsequent thermal treatment. The effect of annealing temperature on the evolution process was discussed.Thermal evolution behavior of solution cast film of Poly(2,6 dimethyl 1,4 phenylene oxide)(PPO)/polystyrene(PS) blend was investigated by conventional and modulated differential scanning calorimetry. It was found that the original PPO/PS blend film is actually composed by a crystalline PPO phase and a non crystalline compatible PPO PS phase. The phase segregated structure state(A) will evolve to non crystalline homogenous structure(B) by subsequent thermal treatment. The effect of annealing temperature on the evolution process was discussed.

关 键 词：聚苯醚 聚苯乙烯 结晶 热行为 共混物 溶液 浇铸膜 热演化 相容性 

分 类 号：O632.13[理学—高分子化学] O633.1[理学—化学]