摘要
以N,N'-亚甲基双丙烯酰胺为交联剂,过硫酸钾-硫代硫酸钠为引发剂,采用敞开体系快速水溶液聚合法合成了耐盐性高吸水树脂聚(丙烯酸钠—CO—丙烯酰胺)。探讨了单体配比、丙烯酸中和度、单体含量、引发剂及交联剂用量对吸水(盐)率的影响,同时对共聚物的溶胀性能作了初步研究。结果表明,在聚丙烯酸系聚合大分子链上同时引入适当配比的酰胺基能产生良好的协同效应,有效提高树脂的耐盐性,且所得树脂的溶胀性能好,最高吸蒸馏水倍率达1840g/g,吸盐(质量分数0.9%的NaCl溶液)倍率达162g/g。
A super-absorbent resistant to saline solution was prepared form copolymer of sodium acrylate with acrylamide with potassium persulphate and sodium thiosulfate as an initiator, N,N′-methylene-bis-acylamide as a crosslinking agent, by means of speedy water solution copolymerization. The influence of mole ratio of acrylamide AM to acrylic acid AA, degree of neutralization of AA, the amount of cross-linking agent and initiator on water and salt absorbency were investigated and optimized. Primary study on swelling behaviors of superabsorbent was made in the paper.
出处
《化工生产与技术》
CAS
2006年第1期16-18,共3页
Chemical Production and Technology
基金
国家自然科学基金(No50372022)
福建省重大科技项目(No2002H002)
福建省新材料与器件重大专题(No2004H201-3)。
关键词
高吸水树脂
耐盐性
丙烯酸
丙烯酰胺
溶液聚舍
superabsorbent
salt-resistant
acrylic acid acrylamide
solution polymerization
