NDLI: Study of the Interaction Between Promazine Hydrochloride and Surfactant (Conventional/Gemini) Mixtures at Different Temperatures

Content Provider	Springer Nature Link
Author	Rub, Malik Abdul Kumar, Dileep Azum, Naved Khan, Farah Asiri, Abdullah M.
Copyright Year	2014
Abstract	In the present paper, the micellization of an amphiphilic drug, promazine hydrochloride, and gemini surfactants (16-s-16) with s = 4–6 and the monomeric hexadecyltrimethylammonium bromide (CTAB) counterparts has been examined conductometrically in the pure and mixed states in aqueous solutions at different compositions and temperatures (298.15–308.15 K). Dicationic gemini surfactants provide much better environment for the micellization behavior than the corresponding monocationic counterpart CTAB. The critical micelle concentration (cmc) values are lower than the cmc for ideal mixing, cmc $^{id}$, suggesting attractive interactions between the two components in mixed micelles. The micellar mole fractions of surfactants, evaluated by different models, show greater contributions of surfactants in mixed micelles and increase with increasing concentrations of these surfactants. The negative values of β suggest synergism in the mixtures, which is highly beneficial as it reduces the total amount of surfactants required in a particular application, leading to reductions of cost and environmental impact. Activity coefficients (f $_{1}$ and f $_{2}$) are always less than unity showing nonideality in the systems. The data have been also used for evaluation of thermodynamic parameters.
Starting Page	930
Ending Page	949
Page Count	20
File Format	PDF
ISSN	00959782
Journal	Journal of Solution Chemistry
Volume Number	43
Issue Number	5
e-ISSN	15728927
Language	English
Publisher	Springer US
Publisher Date	2014-05-10
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Promazine hydrochloride (PMZ) Critical micelle concentration, cmc Gemini surfactant Activity coefficients Thermodynamic parameters Physical Chemistry Industrial Chemistry/Chemical Engineering Geochemistry Oceanography Inorganic Chemistry Condensed Matter Physics
Content Type	Text
Resource Type	Article
Subject	Biochemistry Molecular Biology Biophysics Physical and Theoretical Chemistry

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