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Enzyme‐catalyzed ring‐opening polymerization of cyclic esters in the presence of poly(ethylene glycol)
Author(s) -
Sobczak Marcin
Publication year - 2012
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.36396
Subject(s) - candida antarctica , polymer chemistry , ethylene glycol , polymerization , monomer , ring opening polymerization , gel permeation chromatography , polyester , fourier transform infrared spectroscopy , copolymer , polymer , chemistry , materials science , lipase , organic chemistry , chemical engineering , enzyme , engineering
Low‐molecular‐weight polyesters were obtained by the ring‐opening homopolymerization and copolymerization reaction of ϵ‐caprolactone, rac ‐ or L ‐lactide, and glycolide in the presence of poly(ethylene glycol) with an enzyme catalyst, a lipase from Candida antarctica, Pseudomonas cepacia , or Pseudomonas fluorescens . The influence of several parameters, including time, temperature, and enzyme and monomer concentration, on the polymerization rate was studied. The resulting polymers were characterized by 1 H‐NMR or 13 C‐NMR, Fourier transform infrared spectroscopy, matrix‐assisted laser desorption/ionization–time of flight mass spectroscopy, and gel permeation chromatography. © 2012 Wiley Periodicals, Inc. J Appl Polym Sci, 2012