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Preparation of poly(ethylene glycol) grafted poly(3‐hydroxyalkanoate) networks
Author(s) -
Hazer Baki,
Lenz Robert W.,
Çakmaklı Birten,
Borcaklı Mehlika,
Koçer Halil
Publication year - 1999
Publication title -
macromolecular chemistry and physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.57
H-Index - 112
eISSN - 1521-3935
pISSN - 1022-1352
DOI - 10.1002/(sici)1521-3935(19990801)200:8<1903::aid-macp1903>3.0.co;2-j
Subject(s) - ethylene glycol , polymer chemistry , ethylene , peg ratio , chemistry , copolymer , grafting , side chain , polymer , organic chemistry , catalysis , finance , economics
Poly(3‐hydroxyalkanoate)‐ g ‐poly(ethylene glycol) crosslinked graft copolymers are described. Poly(3‐hydroxyalkanoate)s containing double bonds in the side chain (PHA‐DB) were obtained by co‐feeding Pseudomonas oleovorans with a mixture of nonanoic acid and anchovy (hamci) oily acid (in weight ratios of 50/50 and 70/30). PHA‐DB was thermally grafted with a polyazoester synthesized by the reaction of poly(ethylene glycol) with MW of 400 (PEG‐400) and 4,4′‐azobis(4‐cyanopentanoyl chloride). Sol‐gel analysis and spectrometric and thermal characterization of the networks are reported.