阳离子Gemini表面活性剂与PVA相互作用  

The Interaction Between Cationic Gemini Surfactant and Polyvinyl alcohol

作　　者：裘灵光[1] 刘卉[1] 程毛杰[1] 谢安建[1] 沈玉华[1] 

机构地区：[1]安徽大学化学化工学院,合肥230039

出　　处：《应用化学》2004年第5期506-508,共3页Chinese Journal of Applied Chemistry

基　　金：国家自然科学基金 (2 0 3 710 0 1;2 0 0 3 10 10 );安徽省高等学校青年教师科研基金资助课题(0 10 80 3 0 9)

摘　　要：A cationic gemini surfactant 10-2-10, 1,2-ethane bis(decyl dimethyl ammonium bromide) was synthesized, and the interactions in a mixture of the cationic gemini surfactant with a water-soluble polymer polyvinyl alcohol(PVA) were investigated by means of viscosity, electric conductivity, surface tension and ultraviolet spectrum measurements. The results showed that PVA displays viscosity behavior of polyelectrolyte-electroviscous effect in an aqueous solution with gemini surfactant 10-2-10 due to the molecular interaction between the polymer and the surfactant. The maximum UV absorption wavelength of polymer-surfactant solution shifted to higher wavelength compared with that of the surfactant, and the conductivity of polymer-surfactant solution increased with increase in concentration of PVA in a certain surfactant concentration. In addition, surface tension of gemini surfactant 10-2-10 solution decreased in the presence of PVA and its critical micelle concentration decreased from 5.9 mmol/L to 4.8 mmol/L in the presence of 1.25×10^-3 g/mL PVA.A cationic gemini surfactant 10-2-10, 1,2-ethane bis(decyl dimethyl ammonium bromide) was synthesized, and the interactions in a mixture of the cationic gemini surfactant with a water-soluble polymer polyvinyl alcohol(PVA) were investigated by means of viscosity, electric conductivity, surface tension and ultraviolet spectrum measurements. The results showed that PVA displays viscosity behavior of polyelectrolyte-electroviscous effect in an aqueous solution with gemini surfactant 10-2-10 due to the molecular interaction between the polymer and the surfactant. The maximum UV absorption wavelength of polymer-surfactant solution shifted to higher wavelength compared with that of the surfactant, and the conductivity of polymer-surfactant solution increased with increase in concentration of PVA in a certain surfactant concentration. In addition, surface tension of gemini surfactant 10-2-10 solution decreased in the presence of PVA and its critical micelle concentration decreased from 5.9 mmol/L to 4.8 mmol/L in the presence of 1.25×10^-3 g/mL PVA.

关 键 词：聚乙烯醇 GEMINI 阳离子表面活性剂 粘度 表面张力 

分 类 号：O647[理学—物理化学] TQ423[理学—化学]