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Poly(ε-caprolactone)-Based Organogels and Hydrogels with Poly(ethylene glycol) Cross-Linkings

✍ Scribed by Jean Coudane; Elisabeth Laurent; Michel Vert

Publisher
John Wiley and Sons
Year
2004
Tongue
English
Weight
105 KB
Volume
25
Category
Article
ISSN
1022-1336

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✦ Synopsis

Abstract

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.

imageSchematic of the PCL‐g‐PEG copolymers synthesized here.

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