Method to manufacture PLA using new polymerization catalyst

Method to manufacture PLA using new polymerization catalyst

  • CN 105,518,052 A
  • Filed: 04/29/2014
  • Published: 04/20/2016
  • Est. Priority Date: 05/02/2013
  • Status: Active Application
First Claim
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1. the method for the manufacture of polylactide, comprise the following steps:

  • mix using rac-Lactide with as the metal complex of polymerizing catalyst to obtain reaction mixture, described rac-Lactide is made to be polymerized to form polylactide in the liquid phase at the temperature of at least 150 DEG C, and described polylactide is solidified, it is characterized in that described polymerizing catalyst comprises metal ligand coordination compound, wherein female part meets formula (I)

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