Thermodynamic aspects of polymer-surfactant interactions: Gemini (16-5-16)-PVP-water system

被引：11

作者：

Azum, Naved ^{[1
,2
]}

Asiri, Abdullah M. ^{[1
,2
]}

Rub, Malik Abdul ^{[1
,2
]}

Al-Youbi, Abdulrahman O. ^{[1
,2
]}

Khan, Anish ^{[1
,2
]}

机构：

[1] King Abdulaziz Univ, Ctr Excellence Adv Mat Res, POB 80203, Jeddah 21589, Saudi Arabia

[2] King Abdulaziz Univ, Dept Chem, Fac Sci, POB 80203, Jeddah 21589, Saudi Arabia

来源：

ARABIAN JOURNAL OF CHEMISTRY | 2016年 / 9卷

关键词：

Gemini surfactant; Polyvinylpyrrolidone; Critical aggregation concentration; Critical micelle concentration; SODIUM DODECYL-SULFATE; POLY(ETHYLENE OXIDE); AQUEOUS-SOLUTIONS; IONIC SURFACTANTS; COMPLEX-FORMATION; FLUORESCENCE; EQUILIBRIUM; BINDING; WATER;

D O I：

10.1016/j.arabjc.2012.04.015

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The interaction between polyvinylpyrrolidone (PVP) and gemini surfactant (16-5-16) in aqueous solution has been analyzed using conductometry. From conductivity data the critical aggregation concentration (cac), critical micelle concentration (cmc), the effective degree of coun-ter-ion binding (beta) at different temperatures were obtained. The thermodynamic parameters, i.e., Gibbs energy of aggregation and micellization, standard enthalpy of aggregation, and standard entropy of aggregation of surfactant/polymer system were estimated, employing pseudophase separation model. The negative values of Gibbs energy and standard enthalpy suggest that the surfactant/polymer aggregation process is spontaneous and exothermic respectively. (C) 2012 Production and hosting by Elsevier B.V. on behalf of King Saud University.

引用

页码：S1660 / S1664

页数：5

共 26 条

[1] SODIUM DODECYL-SULFATE INDUCED ENHANCEMENT OF THE VISCOSITY AND VISCOELASTICITY OF AQUEOUS-SOLUTIONS OF POLY(ETHYLENE OXIDE) - A RHEOLOGICAL STUDY ON POLYMER MICELLE INTERACTION [J].