Journal
JOURNAL OF APPLIED POLYMER SCIENCE
Volume 102, Issue 5, Pages 4177-4184Publisher
WILEY
DOI: 10.1002/app.24519
Keywords
poly(N-isopropylacrylamide) hydrogel; microwave; temperature sensitive; poly(ethylene oxide); macroporous
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In this article, a series of poly(N-isopropylacrylamide) (PMPAM)-based hydrogels were prepared under microwave irradiation using poly(ethylene oxide)-600 (PEO-600) as reaction medium and microwave-absorbing agent as well as pore-forming agent. All of the temperature measurements, gel fractions, and FTIR analyses proved that the PNIPAM hydrogels were successfully synthesized. Within 1 min, the PNIPAM hydrogel with a 98% yield was obtained under microwave irradiation. The PNIPAM hydrogels thus prepared exhibited controllable properties such as pore size, equilibrium swelling ratios, and swelling/ deswelling rates when changing the feed weight ratios of monomer (N-isopropylacrylamide, NIPAM) to PEO-600. These properties are well adapted to the different requirements for their potential application in many fields such as biomedicine. (c) 2006 Wiley Periodicals, Inc.
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