Study on the Interaction between Cationic Gemini Surfactant and Water-soluble Polymer Qiu Lingguang, Cheng Maojie, Liu Hui, Xie Anjian, Shen Yuhua (School of Chemistry and Chemical Engineering, Anhui University, Hefei 230039) Abstract In this paper, a cationic Gemini surfactant, 1,2-ethane bis(dimethyl dodecyl ammonium bromide) (12-2-12) was synthesized and characterized by IR, elemental analysis and 1H NMR, and interactions between the cationic Gemini surfactant and a water-soluble polyvinyl alcohol (PVA) were investigated by means of viscosity，electric conductance，surface tension and ultraviolet spectra (UV). The results show that PVA displays a special viscosity behavior in aqueous solution containing the Gemini surfactant 12-2-12, which is due to the molecular interaction of the polymer and the surfactant. In addition, the solution of the Gemini surfactant 12-2-12 shows unusual behaviors in electric conductivity, surface tension and ultraviolet spectra (UV) in the presence of PVA. Key words Polymer, Polyvinyl alcohol(PVA), Gemini surfactant, Cationic surfactant, Viscosity, Surface tension, Interaction 阳离子 Gemini 表面活性剂与水溶性聚合物间的相互作用研究 裘灵光 程毛杰 刘 卉 谢安建 沈玉华 (安徽大学化学化工学院 合肥 230039) 摘要 通过粘度、电导率、表面张力以及紫外吸收光谱等手段，研究了水溶性中性聚合物聚乙烯醇(PVA)与阳离子 Gemini 表面活性剂 1,2-二亚甲基-双(十二烷基二甲基溴化铵)之间的相互作用。结果表明，PVA 与 Gemini 12-2-12 之间有一定的相互作用，从而使体系表现出异常的粘度行为，显示出显著的电粘效应，并导致其混合溶液的最大紫外吸收峰发生了红移，且 PVA 的加入对 Gemini 12-2-12 溶液的电导、表面张力和临界胶束浓度均产生一定的影响。 关键词 聚合物 聚乙烯醇 Gemini表面活性剂 阳离子表面活性剂 粘度 表面张力 相互作用 裘灵光 男，34 岁，博士生，现从事表面活性剂物理化学研究。 国家自然科学基金(20031010, 50302010)及安徽省高等学校青年教师科研基金资助项目(01080309) 2003-06-26收稿，2004-01-11接受 (PDF全文下载c04050)