Oxygen scavenging copolymers made from cyclic aliphatic monomers

摘要

A method and system for oxygen molecule scavenging is disclosed. The system employs as a novel copolymer as the reducing agent for oxygen molecules. The copolymer is the polymerization product of cyclic aliphatic monomer and unsaturated functional polymer.

主权项

1. A thermoplastic compound, comprising: (a) polyethylene terephthalate matrix; and (b) a copolymer of lactide monomer and hydroxyl-terminated functionalized polybutadiene;
wherein the lactide monomer is present in the copolymer in a weight percent ranging from about 30% to about 70% of the copolymer and wherein the hydroxyl-terminated functionalized polybutadiene is present in the copolymer in a weight percent ranging from about 30% to about 70% of the copolymer; and wherein the copolymer has a weight average molecular weight (Mw) of about 15,000-20,000, a number average molecular weight (Mn) of about 8,500-10,000, and a polydispersity of from about 1.8 to about 2.2, all as measured via Gel Permeation Chromatography (GPC) using polystyrene as a test reference.