Effect of polymer conformation on polymer-surfactant interaction in salt-free water
| Autor: | Ahmed El Aferni, Moez Guettari, Tahar Tajouri |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
chemistry.chemical_classification
Polymers and Plastics Polyvinylpyrrolidone Viscometer 02 engineering and technology Polymer Conductivity 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Micelle 0104 chemical sciences Viscosity Colloid and Surface Chemistry chemistry Chemical engineering Pulmonary surfactant Critical micelle concentration Polymer chemistry Materials Chemistry medicine Physical and Theoretical Chemistry 0210 nano-technology medicine.drug |
| Zdroj: | Colloid and Polymer Science. 294:1097-1106 |
| ISSN: | 1435-1536 0303-402X |
| DOI: | 10.1007/s00396-016-3869-8 |
| Popis: | The aim of the present paper was to study the interaction between polyvinylpyrrolidone (PVP) and sodium bis(2-ethylhexyl) sulfoccinate (AOT), as an anionic surfactant, over a temperature range of 25–60 °C by viscosity and electrical conductivity measurements. A coil-to-globule transition of PVP in water was observed. The critical micellar concentration (CMC) was determined by conductivity at 25 and 50 °C. The formation of the complex PVP-AOT in water was studied by conductivity and viscometry at 25 and 50 °C, where the polymer chain adopts respectively coil and globule conformations, and the obtained curves show two break points corresponding to the critical aggregation concentration (CAC) and the polymer saturation point (PSP). The viscometric behavior of PVP-AOT system was studied by using three selected AOT concentrations: CAOT,1, CAOT,2, and CAOT,3 with CAOT,1 |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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