Abstract
The values of critical micelle concentration (CMC) and counter ion binding constants (B) in a micellar state of DPC (1-dodecylpyridinium chloride) with Brij 35 (polyoxyethylene(23) lauryl ether) at 298K in water were determined as a function of α (the overall mole fraction of DPC) by the use of electric conductivity method and surface tension method. Various thermodynamic parameters (X , α , C , a , β, and △ H ) were calculated by means of the equa- tions derived from the nonideal mixed micellar model. The results show that the activities of DPC in a micellar state have great negative deviations and those of Brij 35 have great positive deviations from the ideal mixed micellar model. Various thermodynamic parameters ( △ G , △ H , and △ S ) for the micellization of DPC/Brij 35 mixtures were cal- culated also from the temperature dependence of the CMC values. The values of △ G are all negative, but the values of △ S and △ H are all positive or negative, depending on the measured temperature and α .
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
