Selective Polymerization Catalysis: Controlling the Metal Chain End Group to Prepare Block Copolyesters

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• 作者：Yunqing Zhu ; Charles Romain ; Charlotte K. Williams
• 刊名：Journal of the American Chemical Society
• 出版年：2015
• 出版时间：September 30, 2015
• 年：2015
• 卷：137
• 期：38
• 页码：12179-12182
• 全文大小：356K
• ISSN：1520-5126

文摘

Selective catalysis is used to prepare block copolyesters by combining ring-opening polymerization of lactones and ring-opening copolymerization of epoxides/anhydrides. By using a dizinc complex with mixtures of up to three different monomers and controlling the chemistry of the Zn鈥揙(polymer chain) it is possible to select for a particular polymerization route and thereby control the composition of block copolyesters.