Dihydroxy Capped Triblock DTC and CL Oligomers Prepared by an Alkyl Glycol/Yttrium Phenolate System

摘要

Dihydroxy capped triblock oligomers of 2, 2-dimethyltrimethylene carbonate (DTC) andε-caprolactone (CL) with number-average molecular weight from 3,000 to 12,000 g/mol have beensynthesized by alkyl glycol initiator in the presence of yttrium tri(2, 6-di-tert-butyl-4-methylphenolate)s (Y(OAr)3) catalyst. They are expected to be used as macroinitiators for thedesign of new polymeric materials.