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Micropolarity of normal micellar interior associated with the exchange of pentanol


Citation

Che Rose, Laili and Suhaimi, Harridan and Desa, Mohd Zaizi and Ahmad, Faujan (1997) Micropolarity of normal micellar interior associated with the exchange of pentanol. Journal of Dispersion Science and Technology, 18 (4). pp. 439-448. ISSN 0193-2691; ESSN: 1532-2351

Abstract / Synopsis

The micropolarity of normal micellar interior of ionic surfactants, sodium dodecyl sulphate (SDS) and cetyltrimethylammonium bromide (CTAB), above critical micelle concentration, associated with the addition of pentanol ( or pentanol/hydrocarbon 50:50 wt/wt) were determined by means of fluorescent probe, pyrene. The results showed a decrease in the ratio of the intensity pyrene emission at higher pentanol content, suggesting a lower micropolarity of the micellar interior at increased amount of pentanol. The micropolarity of the micellar interior with CTAB was, however, found to be higher than the corresponding one with SDS. A transition in the micellar shape was also observed in both of the ionic surfactant systems.


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Additional Metadata

Item Type: Article
Divisions: Faculty of Science and Environmental Studies
DOI Number: https://doi.org/10.1080/01932699708943746
Publisher: Marcel Dekker
Keywords: Micropolarity; Pentanol; Pyrene; Micellar interior
Depositing User: Nurul Ainie Mokhtar
Date Deposited: 17 May 2016 15:55
Last Modified: 17 May 2016 15:55
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1080/01932699708943746
URI: http://psasir.upm.edu.my/id/eprint/35792
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