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Metrology as a Tool to Understand Immobilized Enzyme Catalyzed Ring-Opening Polymerization.

Published

Author(s)

Matthew T. Hunley, Sara V. Orski, Kathryn L. Beers

Abstract

Enzyme-catalyzed polymerization provides a green alter-native to synthesize biodegradable polyesters over conventional heavy metal catalysts. Heterogeneous catalysis, where the enzyme is immobilized onto solid-supports, allows for easy catalyst removal and can increase the commercial feasibility of biocatalysis with a through understanding of the reaction kinetics and required process conditions. In this mini-review, we describe our comprehensive metrology approach to fully identify key parameters to control enzymatic ring-opening polymerization (ROP) of lactones: development of predictive models of reaction kinetics, experimental models of the catalyst surface micro-environment, and on-line spectroscopic analysis of reaction conversion for polyester homo-polymers and copolymers. Quantitative evaluation of enzymatic ROP will elucidate the advantages and limitations of current enzyme catalyzed polymerizations and aid in the efficient design of better reaction conditions and next generation catalysts.
Citation
ACS Symposium Series: Green polymer chemistry - Polymer biocatalysis and biobased materials
Publisher Info
American Chemical Society , Washington, DC, DC

Keywords

enzyme catalysis, ring-opening polymerization, Raman spectroscopy, quartz crystal microbalance, microfluidic reactor, surface stability, monomer reactivity ratio, kinetic models
Created February 21, 2013, Updated February 19, 2017