水溶性疏水缔合型聚(丙烯酰胺—丙烯酸十六酯)溶液性质的研究
Studies on The Solution Properties of Water-Soluble Hydrophobically Associating Acrylamide Hexadeyl Acrylate Copolymers
-
摘要: 采用沉淀聚合法制备水溶性的丙烯酰胺-丙烯酸十六疏水缔合型共聚物,研究了共聚物水溶液的性质及其影响因素。随着疏水基团含量增加,共聚物在纯水中及NaCl溶液中的特性粘数η均减小,疏水基团临界缔合浓度降低。共聚物溶液浓度高于监界缔合浓度时,溶液表现粘度急剧增加,表明溶液中分子间缔合大量形成。Abstract: A number of water soluble acrylamide hexadeyl acrylate copolymers of hexadeylate content 0.17, 0.31, 0.49, 0.72, 1.10 and 1.33 mol% were synthesized by precipitation copolymerization. The intrinsic viscosity and critical aggregation concentration (C