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Preparation and properties of temperature‐sensitive soy protein/poly( N ‐isopropylacrylamide) interpenetrating polymer network hydrogels
Author(s) -
Liu Yong,
Cui Yingde
Publication year - 2011
Publication title -
polymer international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.592
H-Index - 105
eISSN - 1097-0126
pISSN - 0959-8103
DOI - 10.1002/pi.3050
Subject(s) - self healing hydrogels , differential scanning calorimetry , poly(n isopropylacrylamide) , thermogravimetric analysis , interpenetrating polymer network , swelling , chemical engineering , materials science , miscibility , polymer chemistry , thermal stability , soy protein , fourier transform infrared spectroscopy , polymer , lower critical solution temperature , scanning electron microscope , copolymer , chemistry , composite material , biochemistry , physics , engineering , thermodynamics
Temperature‐sensitive interpenetrating polymer network (IPN) hydrogels based on soy protein and poly( N ‐isopropylacrylamide) were successfully prepared. The structure and properties were systematically characterized using Fourier transform infrared spectroscopy, scanning electron microscopy, differential scanning calorimetry and thermogravimetric analysis, and the swelling and deswelling behavior was also investigated. It was found that the hydrogels had good miscibility, thermal stability and temperature sensitivity, and the lower critical solution temperature was ca 32 °C. Changing the content of soy protein or crosslinker could be used to control the swelling behavior, water retention and network structure of the IPN hydrogels. The results show that the novel IPN hydrogels may be of potential interest in drug delivery systems. Copyright © 2011 Society of Chemical Industry