PC／PBT共混体系的研究：Ⅰ.PC,PBT熔融共混时的酯交换反应

摘要: 采用红外光谱、核磁共振等测试手段，系统地研究了ＰＣ、ＰＢＴ熔融共混时的酯交换反应，发现ＰＢＴ中残余的Ｔｉ催化剂会对酯交换反应起催化作用。通过加入能和Ｔｉ催化剂络合添加剂，可以控制酯交换程度，这为控制ＰＣ／ＰＢＴ合金的性能提供了一个非常有效的方法。

Abstract: In this paper, the transesterification taking place in molten blends of PC and PBT was systematiclly studied by IR and 1 H NMR. The transesterification can be catalyzed by the titanium resedue presented in PBT and can be stopped at various levels by s