METHOD OF SYNTHESISING POLYCARBONATES IN THE PRESENCE OF A BIMETALLIC CATALYST AND A CHAIN TRANSFER AGENT
申请人:Imperial Innovations Limited
公开号:US20140249279A1
公开(公告)日:2014-09-04
The invention provides a process for the synthesis of a polycarbonate, the process comprising the step of reacting carbon dioxide with at least one epoxide in the presence of a catalyst of formula (I) and a chain transfer agent. The invention also provides a polymerisation system for the copolymerisation of carbon dioxide and at least one epoxide comprising a catalyst of formula (I) and a chain transfer agent, polycarbonates produced by the inventive process, a block copolymer comprising a polycarbonate produced by the inventive process and a method of producing the same. The invention also relates to novel catalysts of formula (III).
本发明提供了一种合成聚碳酸酯的方法,该方法包括在公式(I)的催化剂和链转移剂的存在下,将二氧化碳与至少一种环氧化合物反应的步骤。本发明还提供了一种共聚二氧化碳和至少一种环氧化合物的聚合体系,包括公式(I)的催化剂和链转移剂,以及通过本发明的方法生产的聚碳酸酯,包括由本发明方法生产的聚碳酸酯组成的嵌段共聚物和其制备方法。本发明还涉及公式(III)的新型催化剂。