新型两步水溶液聚合法制备PAA/PAMPS复合材料及其吸液性能研究

材料导报, 2010, 24(12): 43-61.

新型两步水溶液聚合法制备PAA/PAMPS复合材料及其吸液性能研究

李兆乾 ^1, , 林建明 ^2, , 吴季怀 ^3, , 黄妙良 ^4, , 陆遥遥 ^5, , 冷晴 ^6,

1.华侨大学材料物理化学研究所,泉州,362021

2.华侨大学材料物理化学研究所,泉州,362021

3.华侨大学材料物理化学研究所,泉州,362021

4.华侨大学材料物理化学研究所,泉州,362021

5.华侨大学材料物理化学研究所,泉州,362021

6.华侨大学材料物理化学研究所,泉州,362021

基金项目: 福建省"小发明、小创造"扶持基金资助项目(2007年度) 福建省科技重大专项(2007HZOOO1-3;2004HZO1-3) 福建省科技重点项目(2007T0010)

关键词：水凝胶 , 两步水溶液聚合法 , 吸液性能 , AMPS

Synthesis of PAA/PAMPS Composite Materials by Novel Two-step Aqueous Solution Polymerization and Its Swelling Properties

以N,N'-亚甲基双丙烯酰胺(NMBA)为交联剂、过硫酸铵-焦亚硫酸钠氧化-还原体系为引发剂,采用新型水溶液聚合法制备了PAA/PAMPS水凝胶.考察了单体浓度、丙烯酸中和度时凝胶吸液性能的影响,并与传统共混水溶液聚合法制备的凝胶的吸液性能进行了对比.实验结果表明,AMPS用量为40%、中和度为75%的水凝胶的吸液性能较好,吸水倍率达976g/g,吸盐水倍率为75g/g,而采用传统方法制备的凝胶的吸水倍率为380g/g,吸盐水倍率为52g/g.采用FTIR及SEM对样品的结构及形貌进行了表征.

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