The Development Of Catalytic Processes For The Alternating Ring-Opening Copolymerization Of Epoxides With Cyclic Anhydrides: Control Of Polyester Regiochemistry, Stereochemistry, And Molecular Weight
Sustainable growth initiatives have stimulated a revolution in the manufacturing and disposal of commodity materials. Original efforts to replace all persistent plastics with biodegradable alternatives were challenged by poor performance in common applications. Furthermore, redesigning processing methods to accommodate these new materials required more resources than continued use of traditional petrochemical plastics. Recognizing the need for both durable and biodegradable polymers, the updated concept of "bioplastics" encompasses the lifecycle of resources invested in synthetic materials. The frontier of plastics technology now focused on the discovery of efficient methods to transform commodity feedstocks into useful bioplastics. Structurally diverse polyesters are attractive compliments to polyolefin based thermoplastics in applications that would benefit from their functionality and degradability. Several promising features include readily accessible and bio-derived monomers, biomedical and environmental compatibility, as well as green degradation pathways. This dissertation details the development of catalytic methods for the synthesis of new polyesters using commodity feedstocks with control over microstructure and size.
Polyesters; Catalysis; Polymerization
Collum, David B; Dichtel, William Robert
Chemistry and Chemical Biology
Ph.D. of Chemistry and Chemical Biology
Doctor of Philosophy
dissertation or thesis