丙烯酸-丙烯酰胺共聚高吸水性树脂的紫外聚合及其性能研究

Study on UV light polymerization and performance of copolymer acrylic acid-acrylic amide resin

本论文在无交联剂条件下以丙烯酸、丙烯酰胺和氢氧化钠为原料利用高压紫外汞灯辐照引发聚合高吸水性树脂丙烯酸(AA)-丙烯酰胺(AM)共聚物。考察中和度、光照时间、单体含量、聚合物粒度等因素对共聚AM-AA吸液性能的影响。获得了最佳的试验条件,并在最佳试验条件下合成了共聚物。其吸水率(去离子水)为3062g/g,吸生理盐水(0.9%NaCl水溶液)率为241.6g/g,吸自来水率232.8g/g,吸人工尿率为76.6g/g,吸人工血率为367g/g。

Acrylic acid（AA）-acrylic amide （AM） copolymer resin with high absorbency of water was polymerized with acrylic acid, acrylic amide and sodium hydroxide in the free of any cross-linker and initiator under UV irradiation by use of a high- pressured ultraviolet mercury lamp. The influences of monomer ratio, neutralization degree, irradiation time and resin size on the water absorbency performance of synthesized copolymer was investigated. The parameters of resin synthesized in optimum condition are as follows, the deionized water absorbency is 3062 g/g, the saline water （0.9% NaCl） absorbency is 241 g/g, tap water absorbency is 232 g/g, the artificial blood absorbency is 367 g/g, and the artificial urine absorbency is 76.6 g/g.