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中文摘要：
研究了芳香族聚碳酸酯（PC）／聚乳酸（PLA）共混体系在催化剂作用下的反应性熔融共混，考察了催化剂对PC／PLA熔融反应的影响。根据共混体系扭矩变化、共混产物特性黏数和分子量分析、红外和核磁分析。发现催化剂能催化PC／PLA熔融共混体系两相之间的酯交换反应。扫描电镜照片表明，反应过程中PC-PLA共聚物的形成增加了两者的相容性。
英文摘要：
The reactive melt blending of polycarbonate （PC） with polylactic acid （PLA） （80/20, mass ratio） m the presence of catalyst was performed in Haake for 15 min at 220 ℃. The effect of catalyst on melt blending of PC and PLA was investigated. According to the results of changes in equilibrium torque, intrinsic viscosity and molecular weight analysis, IR and ^1H-NMR analysis of blends, the catalyst could catalyze efficiently the transesterification between PC and PLA. The results of SEM photographs show the PC-PLA copolymers produced in the blending, which acted as compatibilizers, could improve the compatibility of PC/PLA blends.
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