Radiation synthesis of polymer/clay nanocomposite hydrogels with high mechanical strength

被引：4

作者：

马荣芳 ^{[1
]}

袁劼 ^{[1
]}

李灿灿 ^{[2
]}

彭静 ^{[1
]}

董珍 ^{[1
]}

许零 ^{[3
]}

李久强 ^{[1
]}

翟茂林 ^{[1
]}

机构：

[1] Beijing National Laboratory for Molecular Sciences, Radiochemistry and Radiation Chemistry Key Laboratory of Fundamental Science,the Key Laboratory of Polymer Chemistry and Physics of the Ministry of Education,College of Chemistry and Molecular Engineering

[2] School of Materials and Engineering, University of Science and Technology Beijing

[3] Department of Energy and Resources Engineering, College of Engineering, Peking University

来源：

Nuclear Science and Techniques | 2014年 / 25卷 / 06期

基金：

中国国家自然科学基金;

关键词：

Clay; Mechanical properties; Irradiation; Stimuli-sensitive polymers; Composites;

D O I：

10.13538/j.1001-8042/nst.25.060301

中图分类号：

TB383.1 [];

学科分类号：

070205 ; 080501 ; 1406 ;

摘要：

Poor mechanical properties of PNIPAAm hydrogels have limited their applications. Nanocomposite hydrogels(NC gels) which incorporate inorganic clay possess high mechanical strength and other desirable properties.In this paper, we report a facile approach to synthesize NC gels using radiation technique. With exfoliated clay sheets acting as crosslinkers, N-isopropylacrylamide monomers are polymerized and crosslinked to form NC gels under γ-irradiation at room temperature. Apart from regular swelling behavior and interesting performance in thermo sensitivity, the radiation synthesized NC gel(RNC gel) has good optical transparency, high strength and flexibility. Through Micro-FTIR, XPS and TG analyses, a particular chemically crosslinked organic/inorganic network was identified in the RNC gel.

引用

页码：42 / 49

页数：8

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