丙烯酸类高吸水树脂的制备及性能研究  

Preparation and properties of super absorbent acrylic resin

作　　者：鲍艳[1,2] 马建中[1,2] 李娜[1,2] 

机构地区：[1]陕西科技大学资源与环境学院,陕西西安710021 [2]陕西科技大学教育部轻化工助剂化学与技术重点实验室,陕西西安710021

出　　处：《功能材料》2011年第4期693-695,699,共4页Journal of Functional Materials

基　　金：国家高技术研究发展计划(863计划)资助项目(2008AA03Z311);国家自然科学基金资助项目(21006061);陕西省教育厅科研计划资助项目(09JK344);陕西科技大学创新科研团队资助项目(TD09-03);陕西科技大学博士科研启动基金资助项目(BJ09-01)

摘　　要：采用水溶液聚合法制备了丙烯酸类高吸水树脂。考察了树脂结构中所含官能团、聚合反应温度及聚合体系pH对高吸水树脂吸水性能的影响。研究结果表明,甲基对树脂的吸水性有负面影响,羟基对吸水性有正面贡献,酯基对吸水性的贡献较羧基差,随酯基链长的增加,树脂的吸水性降低。随聚合温度的升高及体系pH的升高树脂的吸水性呈先增加后降低趋势。Super absorbent resin（SAR） was prepared via aqueous solution polymerization with acrylic monomer.The influences of functional groups in resin chains,reaction temperature and reaction pH on water absorbency of super absorbent resin were investigated.Results show that methyl have negative effect on water absorbency.Hydroxyl is a group for the well-being of water absorbency.The contribution of ester on water absorbency is poorer than carboxylic.The water absorbency of resin is decrease along with the increase of chain length of ester.When reaction temperature and reaction pH are rising,the water absorbency of resin is increased and then decreased.

关 键 词：高吸水树脂 官能团 聚合温度 体系pH 吸水性 

分 类 号：TB34[一般工业技术—材料科学与工程]