溶剂诱导聚碳酸酯的结晶行为

Solvent Liquid Induced Crystallization of Bisphenol-A Polycarbonate

采用丙酮、四氢呋喃、乙酸丁酯和四氯化碳等有机溶剂对双酚A聚碳酸酯(BAPC)进行诱导结晶.结果表明,在丙酮诱导的起始阶段,非晶态BAPC结晶能力得到极大的提高,结晶度迅速提高.四氢呋喃诱导结晶能力次之,诱导结晶速度和结晶度均小于丙酮诱导结果.乙酸丁酯的诱导能力更弱一些,结晶度和晶片厚度均小于丙酮和四氢呋喃的诱导结果.而四氯化碳对BAPC的诱导结晶能力差.

Acetone, tetrahydrofuran, butyl acetate and carbon tetrachloride in liquid state were used to induce the crystallization of bisphenol-A polycarbonate （BAPC） film. It showed that in the initial stage of the acetone induced crystallization, the crystallization ability could be greatly enhanced with a rapid increase of crystallinity. Tetrahydrofuran induced BAPC to crystallize at a slower rate with less crystallinilty. Meanwhile, the ability of butyl acetate to induce BAPC to crystallize is inferior to that of acetone and tetrahydrofuran with the result of smaller crystallinity and crystal size. In addition, carbon tetrachloride was the worst among the four solvents to induce the crystallization of BAPC.