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Open AccessArticle

Multi-Responsive Polysiloxane/Poly(N-isopropylacrylamide) Interpenetrating Networks Containing Urea and Thiourea Groups

Department of Applied Chemistry, College of Engineering, Chubu University, 1200 Matsumoto-cho, Kasugai, Aichi 487-8501, Japan
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Polymers 2020, 12(5), 1175; https://doi.org/10.3390/polym12051175
Received: 10 April 2020 / Revised: 14 May 2020 / Accepted: 18 May 2020 / Published: 20 May 2020
(This article belongs to the Section Polymer Synthesis)
Novel interpenetrating polymer networks (IPNs) were synthesized from N-isopropylacrylamide (NIPAM) and polysiloxanes containing a urea or thiourea side group, in addition to the silanol residue, through two reactions, such as the radical gelation of NIPAM and the condensation of silanols to form a siloxane linkage. The obtained IPNs showed a typical temperature-responsive volume change in water based on the constructed poly-NIPAM gel component. In addition, the characteristic color and volume changes responding to chemical stimuli, such as acetate and/or fluoride ions, based on the introduced urea and thiourea groups onto the polysiloxane gel were observed in N,N-dimethylformamide. View Full-Text
Keywords: polysiloxane; poly(N-isopropylacrylamide); interpenetrating polymer networks; swelling property; anion sensing polysiloxane; poly(N-isopropylacrylamide); interpenetrating polymer networks; swelling property; anion sensing
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MDPI and ACS Style

Sano, J.; Habaue, S. Multi-Responsive Polysiloxane/Poly(N-isopropylacrylamide) Interpenetrating Networks Containing Urea and Thiourea Groups. Polymers 2020, 12, 1175.

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