辉光放电电解等离子体引发制备三元共聚耐盐性高吸水树脂  

Preparation of salt-resistant superabsorbent terpolymer by using glow discharge electrolysis plasma

作　　者：高锦章[1] 朱文娟[1] 李岩[1] 杨珍珍[1] 王兴刚[1] 

机构地区：[1]西北师范大学化学化工学院,甘肃兰州730070

出　　处：《西北师范大学学报（自然科学版）》2010年第1期70-74,共5页Journal of Northwest Normal University(Natural Science)

基　　金：教育部重点科技基金资助项目(00250);甘肃省自然科学基金资助项目(3ZS041-A25-028);西北师范大学科技创新工程基金资助项目(NWNU-KJCXGC-01)

摘　　要：以丙烯酸(AA)、丙烯酰胺(AM)及甲基丙烯酸-β-羟乙酯(HEMA)为单体,N,N′-亚甲基双丙烯酰胺(NMBA)为交联剂,采用辉光放电等离子体引发溶液聚合法合成了三元共聚耐盐性高吸水树脂(PAA-AM-HEMA).考察了放电电压、放电时间、交联剂用量、丙烯酸对丙烯酰胺的摩尔比以及丙烯酸中和度等因素对树脂吸盐水率的影响.用红外光谱(FT-IR)和扫描电镜(SEM)对产物进行了表征.结果表明,耐盐性吸水树脂在室温下对蒸馏水和0.9%氯化钠水溶液的吸收量分别为996 g.g-1和82 g.g-1,10 min时最大溶胀比为67%,且具有良好的凝胶强度和分散性能.Salt-resistant superabsorbent terpolymer glow discharge electrolysis plasma, in which acry methacrylate（HEMA） are used as monomers. Th is synthesized via solution lic acid （AA）, acrylamide polymerization initiated by （AM） and 2-hydroxyethyl e synthetic conditions such as the applied discharge voltage and time, the concentration of crosslinker, the molar ratio of AA to AM and the neutralization degree of AA are also studied. The resulting product is characterized by fourier transform infrared spectroscopy（FT-IR）and scanning electron microscopy（SEM）. The swelling capacity for pure water and 0.9%NaCI solution are found to be 996 g·g^-1 and 82 g·g^-1 respectively. A faster swelling-ratio for saline solution is observed to be 67% within 10 min. Moreover, the proposed superabsorbent exhibits excellent properties in intensity, dispersion and springiness.

关 键 词：辉光放电电解等离子体 高吸水树脂 耐盐性 

分 类 号：O646.9[理学—物理化学]