Method for interfacial chain-growth polymerization and ultra-high molecular weight polymer

Abstract

The present disclosure discloses a novel method for interfacial chain-growth polymerization and an ultra-high molecular weight polymer. The present disclosure pertains to the technical field of preparing an ultra-high molecular weight polymer. The novel method for interfacial chain-growth polymerization comprising steps of: mixing a combined catalyst of an organic base and a hydrogen bond donor, an initiator, a monomer to carry out the interfacial chain-growth polymerization; wherein the monomer is selected from a lactide, a lactone, a thiolactone, a lactam, an acrylate or an olefin; the initiator is one or more selected from the group consisting of alcohol-based substances and thiol-based substances; and the hydrogen bond donor is selected from a structure represented by Formula 1 or a structure represented by Formula 2. The novel method effectively suppresses polymerization side reactions through phase separation of the polymer chains from the solvent, thereby obtaining an ultra-high molecular weight polymer. The poly(thioglycolide) of the ultra-high molecular weight polymer has good thermal and mechanical properties, and excellent barrier property, especially outstanding oxygen barrier property. Also, the poly(thioglycolide) can be recycled by solution depolymerization.

Dependencies are inferred from the claim text.