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Thermal phase transition of poly(N-propionylethyleneimine) hydrogel

✍ Scribed by Jiadong Hua; Yinfeng Liu; Jun Hu; Qinque Wang; Zhenbang Gong; Xizhang Guo

Publisher
John Wiley and Sons
Year
1999
Tongue
English
Weight
117 KB
Volume
74
Category
Article
ISSN
0021-8995

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✦ Synopsis

This article presents the preparation of the hydrogel of poly(N-propionylethyleneimine) and its interpenetrating polymer network (IPN) hydrogel containing polyacrylamide by means of β₯-ray radiation and a study of the phase transition temperature of these hydrogels. As a result, the hydrogel of the crosslinked poly(Npropionylethyleneimine) exhibited swelling below and shrinking above the phase transition temperature (about 61Β°C), as well as the lower critical solution temperature (LCST) of the liner polymer-water system. The experiment also showed that the LCST of the IPN hydrogel could be adjusted by the incorporation of the second component polyacrylamide.

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