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Poly( ε ‐caprolactone)‐Based Organogels and Hydrogels with Poly(ethylene glycol) Cross‐Linkings
Author(s) -
Coudane Jean,
Laurent Elisabeth,
Vert Michel
Publication year - 2004
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.200400310
Subject(s) - ethylene glycol , polymer chemistry , copolymer , caprolactone , peg ratio , materials science , self healing hydrogels , aqueous solution , chemistry , organic chemistry , polymer , finance , economics , composite material
Summary: The reaction of triphosgene with poly(ethylene glycol) yielded poly(ethylene glycol) dichloroformate. This difunctional cross‐linker was allowed to react with poly( ε ‐caprolactone) bearing carbanionic sites obtained by activation with lithium diisopropylamide. The reaction resulted in the cross‐linking of poly( ε ‐caprolactone) chains by poly(ethylene glycol) segments, giving copolymer networks that gel in both organic and aqueous media.Schematic of the PCL‐ g ‐PEG copolymers synthesized here.