【摘要】 阳离子型温敏水凝胶的合成与性质王昌华卢英先曹维孝（北京大学化学与分子工程学院北京１００８７１）关键词热缩温敏水凝胶，Ｎ异丙基丙烯酰胺，Ｎ乙烯基吡啶氟硼酸盐，Ｎ甲基４乙烯基吡啶硫酸甲酯盐水凝胶可看作是水溶或亲水高分子的一种亲水网络．多数...更多还原

【Abstract】 The thermosensitive hydrogels were prepared from the copolymerization of N-Isopropyl-acrylamide and N-vinyl pyridium tetrafluroborate（NVP.BF₄） or N-methyl-4- vinyl pyridium methylsulfate （NMVP.CH₃SO₄） as cationic comonomers in the presence of methylene bisacrylamide（MBA） as crosslinking agent by means of γ-r and crosslinking agent on the properties of hydrogel especially the swelling ratio（SR） and sensitive temperature have been investigated The results show that the SR of the hydrogels will increase with the increasing the content of cationic monomer or decreasing the content of crosslinking agent. The sensitive temperature of the hydrogel will also increase with increasing the content of the cationic monomer but the content of the crossing agent seems to have no influence on it.更多还原