Preparation and microstructural analysis of poly(ethylene oxide) comb-type grafted poly(N-isopropyl acrylamide) hydrogels crosslinked by poly(ε-caprolactone)

Lei Miao; Mangeng Lu; Chaolong Yang; Yunfei Zhang; Tengfei Shen; Jianying Ma

doi:10.1002/app.38172

Preparation and microstructural analysis of poly(ethylene oxide) comb-type grafted poly(N-isopropyl acrylamide) hydrogels crosslinked by poly(ε-caprolactone)

Lei Miao, Mangeng Lu, Chaolong Yang, Yunfei Zhang, Tengfei Shen, Jianying Ma

Research output: Contribution to journal › Article › peer-review

8 Citations (Scopus)

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.

Original language	English
Pages (from-to)	275-282
Number of pages	8
Journal	Journal of Applied Polymer Science
Volume	128
Issue number	1
DOIs	https://doi.org/10.1002/app.38172
Publication status	Published - 2013 Apr 5
Externally published	Yes

Keywords

grafting
hydrogels
hydrophilic polymers

ASJC Scopus subject areas

Chemistry(all)
Surfaces, Coatings and Films
Polymers and Plastics
Materials Chemistry

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10.1002/app.38172

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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.",

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author = "Lei Miao and Mangeng Lu and Chaolong Yang and Yunfei Zhang and Tengfei Shen and Jianying Ma",

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T1 - Preparation and microstructural analysis of poly(ethylene oxide) comb-type grafted poly(N-isopropyl acrylamide) hydrogels crosslinked by poly(ε-caprolactone)

AU - Miao, Lei

AU - Lu, Mangeng

AU - Yang, Chaolong

AU - Zhang, Yunfei

AU - Shen, Tengfei

AU - Ma, Jianying

PY - 2013/4/5

Y1 - 2013/4/5

N2 - 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.

AB - 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.

KW - grafting

KW - hydrogels

KW - hydrophilic polymers

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Preparation and microstructural analysis of poly(ethylene oxide) comb-type grafted poly(N-isopropyl acrylamide) hydrogels crosslinked by poly(ε-caprolactone)

Abstract

Keywords

ASJC Scopus subject areas

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