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- Title
Preparation and microstructural analysis of poly(ethylene oxide) comb-type grafted poly( N-isopropyl acrylamide) hydrogels crosslinked by poly(ϵ-caprolactone).
- Authors
Miao, Lei; Lu, MangENg; Yang, Chaolong; Zhang, Yunfei; ShEN, TENgfei; Ma, Jianying
- Abstract
Poly( N-isopropyl acrylamide) (PNIPAAm)- graft-poly(ethylene oxide) (PEO) hydrogels crosslinked by poly(ϵ-caprolactone) diacrylate were prepared, and their microstructures were investigated. The swelling/deswelling kinetics and compression strength were measured. The relationship between the structure and properties of hydrogel are discussed. It was found that the PEO comb-type grafted structure reduced the thermosensitivity and increased the compression strength. The addition of poly(ϵ-caprolactone) (PCL) accelerated the deswelling rate of the hydrogels. Meanwhile, the entanglement of PCL chains restrained the further swelling of the network of gels. The PCL crosslinking agent and PEO comb-type grafted structure made the behavior of the hydrogels deviate from the rubber elasticity equations. © 2012 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2013
- Subjects
MICROSTRUCTURE; POLYETHYLENE oxide; GRAFT copolymers; ACRYLAMIDE; CROSSLINKED polymers; CAPROLACTONES; MATERIALS compression testing; ELASTICITY
- Publication
Journal of Applied Polymer Science, 2013, Vol 128, Issue 1, p275
- ISSN
0021-8995
- Publication type
Article
- DOI
10.1002/app.38172