Thermodynamıc Studıes of Interactıon Between CTAB and Carboxymethylcellulose Usıng Different Techniques

BAYRAK Y., Tüfekçi S.

Journal of Dispersion Science and Technology, vol.34, no.8, pp.1079-1084, 2013 (SCI-Expanded, Scopus) identifier identifier

  • Publication Type: Article / Article
  • Volume: 34 Issue: 8
  • Publication Date: 2013
  • Doi Number: 10.1080/01932691.2012.737747
  • Journal Name: Journal of Dispersion Science and Technology
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.1079-1084
  • Keywords: Conductivity, density, ionic surfactants, i{dotless}nteractions, surface tension
  • Trakya University Affiliated: Yes

Abstract

Mixtures of carboxymethyl cellulose (carboxyMC) and cethyltrimethyl ammonium bromide (CTAB) were investigated using surface tension, specific conductivity and density measurements. The parameters of the surfactant to polymer association processes such as the critical aggregation concentration (cac) and the polymer saturation point (psp) were determined from the plots of surface tension, specific conductivity and density versus surfactant concentration. The thermodynamic parameters of polymer-surfactant interaction were calculated at different temperatures. The results showed that the standard Gibbs free energy, the enthalpy and the entropy of the aggregation process were found negative in all cases. © 2013 Copyright Taylor and Francis Group, LLC.