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Influence of sodium carboxymethylcellulose on the aggregation behavior of aqueous 1-hexadecyl-3-methylimidazolium chloride solutions.
Das, Bijan; Ray, Dhiman; De, Ranjit.
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  • Das B; Department of Chemistry, Presidency University, 86/1 College Street, Kolkata 700 073, India. Electronic address: bijan.chem@presiuniv.ac.in.
  • Ray D; Department of Chemistry, Presidency University, 86/1 College Street, Kolkata 700 073, India.
  • De R; Advanced Photonics Research Institute (APRI), Gwangju Institute of Science and Technology (GIST), 261 Cheomdan-gwagiro (Oryng-dong), Buk-gu, Gwangju 500-712, Republic of Korea.
Carbohydr Polym ; 113: 208-16, 2014 Nov 26.
Article en En | MEDLINE | ID: mdl-25256477
The influence of sodium carboxymethylcellulose (NaCMC) on the aggregation phenomena of a surface active ionic liquid 1-hexadecyl-3-methylimidazolium chloride (C16MeImCl) was studied in aqueous solutions using electrical conductivity and surface tension measurements. The counterion condensation behavior of NaCMC (aq) and the premicellar ion-association behavior of C16MeImCl (aq) were also investigated. Two characteristic concentrations, namely the critical aggregation concentration and polymer saturation concentration, before free C16MeImCl micelles appear in C16MeImCl-NaCMC solutions have been identified. Effects of temperature, NaCMC concentration, and the charge density parameter of NaCMC on the self-aggregation of the C16MeImCl have been discussed to elucidate C16MeImCl-NaCMC interactions. The thermodynamic parameters for micellization of C16MeImCl were estimated both in absence and in the presence of NaCMC. The observed enthalpy-entropy compensation effect in C16MeImCl and C16MeImCl-NaCMC systems provided important insight as to how micellization processes are governed by the bulk structural property of the solution with respect to that of the water.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Carboximetilcelulosa de Sodio / Imidazoles Tipo de estudio: Prognostic_studies Idioma: En Revista: Carbohydr Polym Año: 2014 Tipo del documento: Article Pais de publicación: Reino Unido
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Carboximetilcelulosa de Sodio / Imidazoles Tipo de estudio: Prognostic_studies Idioma: En Revista: Carbohydr Polym Año: 2014 Tipo del documento: Article Pais de publicación: Reino Unido