期刊
CHEMICAL COMMUNICATIONS
卷 55, 期 48, 页码 6914-6917出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c9cc00493a
关键词
-
资金
- Office of Naval Research [N00014-14-1-0551]
- NSF [CHE-1531632]
A dual catalysis system was developed to synthesize hydrolyzable polyether-polyester copolymers from propylene oxide and cyclic esters such as gamma-butyrolactone, delta-valerolactone, and epsilon-caprolactone. A bimetallic chromium catalyst active for the enantioselective polymerisation of propylene oxide and an organocatalyst active for the ring-opening polymerisation of lactones were used in conjunction with an alcohol chain shuttling agent to create new copolymers. The monomer and alcohol ratios were varied to yield a wide range of copolymers with varying monomer ratios, molecular weights, and crystallinities.
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