Thermodynamic and spectroscopic studies of SDS in cinnamaldehyde plus ethanol mixtures: Influences of temperature and composition
Document Type
Article
Publication Date
12-1-2022
Abstract
The study of intermolecular interactions between ethanol (E-OH), cinnamaldehyde (CAD) with anionic surfactant sodium dodecyl sulfate (SDS) in non-aqueous media has been examined by utilizing conductometric and spectroscopic techniques. The critical micelle concentration (CMC) values have been determined. The experimental conductance data were analyzed against temperature and concentration using standard relations. The pseudo phase separation model has been adopted to calculate various thermodynamic parameters like standard free energy, increment G degrees(mic), enthalpy, increment H degrees(mic), and entropy, increment S degrees(mic), of micelle formation. Fourier transforms infrared analysis (FTIR), and Fluorescence spectra were taken out to assess the possible interactions prevailing in the micellar systems. The findings demonstrated that the presence of SDS, and the composition of CAD + ethanol might affect the thermodynamic parameters. The discrepancy in these parameters with the surfactant concentration or with the temperature change indicates the manifestation of different interactions prevailing in the studied systems.
Keywords
ethanol, CAD, thermodynamic parameters, CMC, hydrophobic-hydrophobic interactions, FTIR analysis
Divisions
CHEMISTRY
Funders
Deanship of Scientific Research, Jazan University [RUP2-02]
Publication Title
Applied Sciences-Basel
Volume
12
Issue
23
Publisher
MDPI
Publisher Location
ST ALBAN-ANLAGE 66, CH-4052 BASEL, SWITZERLAND