高强度P(AA-co-AM)水凝胶的合成及性能优化  

Synthesis and Performance Optimization of High Strength P(AA-co-AM)Hydrogel

作　　者：冷奇展 陈世兰 陈强 邹航 叶勇 陈勇 LENG Qizhan;CHEN Shilan;CHEN Qiang;ZOU Hang;YE Yong;CHEN Yong(College of Metallurgy and Material Engineering&College of Chemistry and Chemical Engineering,Chongqing University of Science and Technology,Chongqing 401331,China)

机构地区：[1]重庆科技学院冶金与材料工程学院化学化工学院,重庆401331

出　　处：《重庆科技学院学报（自然科学版）》2021年第6期92-95,112,共5页Journal of Chongqing University of Science and Technology：Natural Sciences Edition

基　　金：重庆市教委科学技术研究项目“Rylene类衍生物的可控超分子聚合及半导体性能研究”(KJQN202001550);重庆科技学院研究生创新计划项目“P(VDF-HFP)PEO的新型离子凝胶导电薄膜”(YKJCX1920209)。

摘　　要：以相对分子质量较大的聚乙二醇二甲基丙烯酸酯(PEGDMA)为交联剂,研究P(AA-co-AM)水凝胶的制备,以提高其机械强度。通过单因素实验,考察AA中和度、单体比例等因素对P(AA-co-AM)水凝胶强度和吸水倍率的影响。研究结果表明,当丙烯酸中和度为80%、n(AM)/n(AA)为2.5、引发剂用量为0.5%、n[(NH_(4))_(2)S_(2)O_(8)]/n[Na_(2)SO_(3)]为1.0、反应温度为50℃、交联剂用量为0.6%时,水凝胶的强度及吸水倍率最好。In order to improve the mechanical strength of P(AA-co-AM)hydrogels,P(AA-co-AM)hydrogels are prepared bypolyethylene glycol dimethacrylate(PEGDMA)with relatively higher molecular weight as crosslinking agent.The effects of experimental factors such as the degree of neutralization of AA and monomer proportion on the strength and water absorbency of P(AA-co-AM)hydrogel are investigated by single factor experiment.The results show that when the neutralization degree of acrylic acid is 80%,n(AM)/n(AA)is 2.5,the amount of initiator is 0.5%,n[(NH_(4))_(2)S_(2)O_(8)]/n[Na_(2)SO_(3)]is 1.0,the reaction temperature is 50℃,the amount of crosslinking agent is 0.6%,the strength and water absorption rate of the prepared hydrogel are the best.

关 键 词：水凝胶 丙烯酸 丙烯酰胺 中和度 引发剂 

分 类 号：TQ436[化学工程]