标题：Anisotropic Nanocomposite Hydrogels with High Mechanical Strength Using Hydrophilic Reactive Microgels and Self-Assemble
作者：Qin, Xuping; Zhao, Fang; Feng, Shengyu
作者机构：[Qin, Xuping; Zhao, Fang; Feng, Shengyu] Shandong Univ, Sch Chem & Chem Engn, Jinan 250100, Peoples R China.
会议名称：2nd International Conference on Mechnaical and Aerospace Engineering (ICMAE 2011)
会议日期：JUL 29-31, 2011
来源：MECHANICAL AND AEROSPACE ENGINEERING, PTS 1-7
关键词：Hydrogels; Anisotropic; Microgels; Photopolymerization; Mechanical; strength
摘要：Anisotropic hydrogels based on acrylamide were prepared by frontal photopolymerization. First hydrophilic microgels (HM) were spreparaed by inverse emulsion photopolymerization, and secondly hydrophilic reactive microgels (HRM) with C=C double bonds were synthesis by chemical modification of the HM used N-methylolacrylamide, Last, HRM hydrogels were synthesis by frontal photopolymerization using HRM as crosslinkers. Only one direction of the HRM hydrogcls show excellent fracture strength and tensile elongation but the other two directions show little fracture strength and tensile elongation. The reason of the high mechanical performance in the given direction is that the hydrogels are crosslinked by HRM as a new crosslinking agent instead of the conventional crosslinking agents and these nanoparticles can self-assemble into anisotropic structures and the structure can be stabilized by free radical polymerization. The anisotropic hydrogels could use potential materials such as artificial muscles tissue.