Journal
MACROMOLECULAR BIOSCIENCE
Volume 4, Issue 4, Pages 407-411Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/mabi.200300073
Keywords
biodegradable; esterification; peptides; phase separation; stimuli-sensitive polymers
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Poly(gamma-glutamic acid) (gamma-PGA) is a biosynthetic polymer, and the carboxyl groups are able to undergo a chemical modification. In this study, poly(alpha-propyl gamma-glutamate) (gamma-PGA propylate) was synthesized by the esterification of these carboxyl groups to yield a thermosensitive and biodegradable polymer. In aqueous solution, the gamma-PGA propylate can impart thermosensitivity by controlling the hydrophobic-hydrophilic balance of the gamma-PGA polymeric chains.
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