High mechanical strength hydrogels preparation using hydrophilic reactive microgels as crosslinking agents

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• 作者：Xuping Qin ; Fang Zhao ; Yingkai Liu ; Hongyun Wang and Shengyu Feng
• 关键词：Hydrogels ; Polymers ; Microgels ; Microstructure ; Mechanical strength
• 刊名：Colloid & Polymer Science
• 出版年：2009
• 出版时间：May, 2009
• 年：2009
• 卷：287
• 期：5
• 页码：621-625
• 全文大小：237.9 KB

文摘

HRM (hydrophilic reactive microgels) hydrogels based on acrylamide and 2-acrylamido-2-methylpropane sulfonic acid were prepared using HRM as a new crosslinking agent. HRM containing double bonds (C=C) were obtained by chemically modifying hydrophilic microgels (HM) of acrylamide with 2-acrylamido-2-methylpropane sulfonic acid. The resulting HRM hydrogels had high compression strength, elasticity, and elongation under high water content. The excellent mechanical performance is a main result of the unique microstructure of the hydrogels that are crosslinked by HRM instead of the conventional crosslinking agents such as N,N′–methylenebisacrylamide.