Adsorption of poly(diallyldimethylammonium chloride)—sodium methyl-cocoyl-taurate complexes onto solid surfaces
| Autor: | Colette Cazeneuve, Nawel Baghdadli, Gustavo S. Luengo, Ramón G. Rubio, Sara Llamas, Francisco Ortega, Eduardo Guzmán |
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| Rok vydání: | 2016 |
| Předmět: |
Chemistry
Supramolecular chemistry Cationic polymerization 02 engineering and technology Quartz crystal microbalance 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Polyelectrolyte 0104 chemical sciences Colloid and Surface Chemistry Adsorption Dynamic light scattering Pulmonary surfactant Chemical engineering Polymer chemistry Turbidimetry 0210 nano-technology |
| Zdroj: | Colloids and Surfaces A: Physicochemical and Engineering Aspects. 505:150-157 |
| ISSN: | 0927-7757 |
| Popis: | The study of the adsorption of supramolecular complexes formed by a highly charged cationic homopolymer (poly(diallyldimethylammonium chloride), PDADMAC), and a sulfate-free anionic surfactant, sodium methyl cocoyl taurate (SMCT), on liquid/solid interfaces was performed by dissipative quartz crystal microbalance, ellipsometry and atomic force microscopy. Moreover, turbidimetry, dynamic light scattering and ζ-potential measurements were carried out to characterize the bulk solutions. The complexes adsorb onto the solid surfaces, leading to inhomogeneous films formed by isolated aggregates randomly distributed through the surface. Additionally, the adsorption kinetics of the bulk complexes onto the negatively charged surface was studied. This work aims to understand the physico—chemical mechanisms involved in the adsorption of polycation—negatively charged surfactant mixtures, interesting for the design of conditioner cosmetic formulations, onto negatively charged surfaces. It is expected that the results here obtained may provide a better understanding of the conditioning effect of cosmetic products on keratinic (hair) substrates. |
| Databáze: | OpenAIRE |
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