Swelling and thermal properties of porous PNIPAM/PEG hydrogels prepared by radiation polymerization

作     者：LI Zhihui LIU Wentao LI Zhongyuan YANG Mingcheng GAO Xujing CUI Haitao HE Suqin ZHU Chengshen 

作者机构：School of Materials Science and EngineeringZhengzhou University Shenzhen Academy of Metrology & Quality Inspection Isotope Institute of Henan Academy of Sciences 

出 版 物：《Nuclear Science and Techniques》 (核技术（英文）)

年 卷 期：2013年第24卷第2期

页      面：17-24页

核心收录：

学科分类：08[工学] 0827[工学-核科学与技术] 082701[工学-核能科学与工程] 

基　　金：Supported by the Key Science and Technology Project of Henan Province(No.102101210100) the Natural Science Foundation ofHenan Province(No. 2011 B430023) 

主　　题：智能水凝胶 PNIPAM 辐射聚合 PEG 多孔 肿胀 制备 热性能 

摘      要：In this study,a series of porous intelligent hydrogels were synthesized by radiation exhibiting the lower critical solution temperature（LCST） and fast response involving a combination of A’-isopropyl acrylamideas monomer, polyethylene glycol（PEG） as pore-forming agent and N,N-methylene-bis-acrylamide as crosslinking *** hydrogels were analyzed by Fourier transform infrared spectroscopy,and the influence of radiation doses on their swelling and thermal behaviors were *** surface morphologies were examined by scanning electron *** results showed that PEG molecules only acted as pore-forming agent in the cross-linked *** swelling ratios reduced with increasing radiation *** LCST was around 37℃,and varied little with the radiation *** frozen water content of PNIPAM/PEG6000 hydrogel reduced with increasing the radiation dose,and was greater than that of PN1PAM hydrogel at 15 *** macropores were prepared by PEG agent,and the hydrogels without PEG had a dense *** porous hydrogels are expected to be applied in the field of artificial intelligence material.