Studies On pH-Sensitive Hydrogels of Polyacrylic Acid

Gao Jianfeng, Gao Baojiao
(Department of Chemical Engineering, North China Institute of Technology, Taiyuan 030051)

Abstract Poly(acrylic acid)-co-(acrylonitrile) hydrogels and poly(acrylic acid)-co-(methyl methacrylic acid) hydrogels were prepared through the co-polymerization. And swelling ratio of them were studied under various pH conditions at given temperature. The effects of the amount of the cross-linking agent and monomer concantiation on swelling ratio were also investigated.
Key words Poly acrylic acid copolymer hydrogels, pH sensitivity, Swelling ratio

聚丙烯酸类pH敏感水凝胶的研究

高建峰 高保娇
(华北工学院 太原 030051)

摘要 通过共聚制得聚丙烯酸-co-丙烯腈水凝胶和聚丙烯酸-co-甲基丙烯酸水凝胶，研究了它们在恒温下不同pH时的溶胀率，以及在恒定pH时，交联剂、单体浓度对它们溶胀率的影响。
关键词 丙烯酸 水凝胶 pH敏感度 水凝胶 溶胀率

高建峰 男，33岁，博士生，讲师，从事基础化学及应用研究。E-mail:jianfenggao@163.com
2002-04-08收稿，2002-07-17修回