Suppression Of Chain Transfer In Catalytic Acrylate Polymerization Via Rapid And Selective Secondary Insertion
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY(2015)
摘要
In catalytic copolymerization, undesired chain transfer after incorporation of a polar vinyl monomer is a fundamental problem. We show an approach to overcome this problem by a fast consecutive insertion. The second double bond of acrylic anhydride rapidly inserts intramolecularly to regio- and stereoselectively form a cyclic repeat unit and a primary alkyl favorable for chain growth (>96%). This results in significantly enhanced copolymer molecular weights vs monofunctional acrylate monomers.
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