Interactions of alkyl triphenyl phosphonium bromides with aqueous solutions of LM200 and JR400 polymers
| Autor: | Rama M. Palepu, Maryjo Doiron, Rebecca Dean, Jonathan R. Moulins |
|---|---|
| Rok vydání: | 2008 |
| Předmět: |
chemistry.chemical_classification
Aqueous solution Inorganic chemistry Cationic polymerization Ether Polymer Condensed Matter Physics Electronic Optical and Magnetic Materials Gibbs free energy chemistry.chemical_compound symbols.namesake chemistry Pulmonary surfactant Bromide Polymer chemistry Materials Chemistry symbols lipids (amino acids peptides and proteins) Physical and Theoretical Chemistry Alkyl |
| Zdroj: | Physics and Chemistry of Liquids. 46:202-212 |
| ISSN: | 1029-0451 0031-9104 |
| DOI: | 10.1080/00319100701594206 |
| Popis: | The interactions of the cationic cellulose ether derivatives JR400 and the hydrophobically modified derivative LM200 with cationic alkyl triphenylphosphonium bromides, were investigated in aqueous media. Conductometric, tensiometric and fluorescence techniques were employed in this study. The presence of polymer induced surfactant aggregation and polymer bound aggregates, were detected for C16 and C14 triphenylphosphonium bromide surfactants with LM200. Gibbs free energy of transfer and the dielectric constant values sensed by the fluorescent probe at the micellar interface were evaluated and discussed in terms of strength of interaction between the polymers and surfactants. |
| Databáze: | OpenAIRE |
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