Abstract
Biocatalytic organic synthesis has proved to be a significant breakthrough in the area of polymer synthesis. Environmentally benign methodology and the use of mild reaction conditions are a hallmark of this approach. We have studied the biocatalytic synthesis of unsaturated polyesters under solvent‐less conditions by the condensation copolymerization of dimethyl fumarate and dimethyl maleate with polyethylene glycol (PEG) catalyzed by Novozyme‐435 (immobilized Candida antarctica lipase B). The structures of the resulting polymers, poly(ethylene glycol)‐co‐dimethyl fumarate and poly(ethylene glycol)‐co‐dimethyl maleate were studied from their 1H and 13C‐NMR spectra. The molecular weights of polymers were determined by size exclusion chromatography.
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