文献类型：期刊文献

中文题名：丙烯酸水凝胶的pH敏感性研究

英文题名：Studies on the pH-sensitivity of Acrylic-Acid Hydrogels

作者：陆大年[1];陈士安[1];鲍景旦[1];曹瑾[1];胡英[1]

机构：[1]华东理工大学化学系,中国纺织大学纺织化学工程系

年份：1994

卷号：20

期号：6

起止页码：818

中文期刊名：华东理工大学学报（自然科学版）

外文期刊名：Journal of East China University of Science and Technology

收录：CSTPCD;;Scopus;CSCD:【CSCD2011_2012】；

语种：中文

中文关键词：丙烯酸;水凝胶;pH敏感性

外文关键词：acrylic acid;hydrogels; pH-sensitivity;sensitive hydrogels;swelling curve 1)Department of Textile chemieal Engineering.China Textile University.Shanghai,200251

摘要：测定并研究了各种丙烯酸水凝胶的ｐＨ溶胀曲线及其影响因素。实验表明：随着交联剂含量、单体浓度的增加，会使凝胶的最大溶胀比显著减弱。这可能是网络中非高斯短链及勾结链增多的原故。
The pH-sensitive swelling isothems of various acrylic acid hydrogels were mea-sured.Generally ,the Columbic interactions inside the gel network and the Donnan equilibriabetween the network and bulk solution are two main factors affecting the swelling behaviorof pH-sensitively hydrogels.The type and the amount of the cross-linking agent and the con-centration of the monomer used during the preparation of gels can effectively modify the net-work structure,therefore,can change the appearance of awelling isotherms.Besides,the prob-ability of forming non-gaussian short chains andleading to the entanglement of chains isgreatly enhanced with the increase of the amount of the cross-linking agent and the concen-tration of the monomers. As a consequence,the maximum swelling ratio is notably reduced.