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Polarographic studies of non-ionic surfactants with reference to their structural influence on surface activity

Author
Tunçay, Melda
Hisarlı, Gül
Atun, Gülten
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Abstract
The surface activity of a homologous series of non-ionic surfactants having 12-16 carbon atoms in the alkyl chain and different lengths of the polyoxyethylene (POE) group was studied by a direct current polarographic method. Polarographic micelle points (PMPs) were used to compare the surface activities of the non-ionic surfactants in dimethylformamide (DMF) media. Results obtained from this study showed that the PMP increased regularly as the percentage of DMF in the solutions increased, indicating a decrease in the surface activity. In DMF media, as in water, the surface activity of the non-ionic surfactants depends on the hydrophilic/lipophilic ratio. Either increasing the length of the alkyl chain or decreasing the length of the polyoxyethylene chain contributes both to an enhanced hydrophobicity and an increased surface activity of the non-ionic surfactants.
URI
http://hdl.handle.net/20.500.12627/148950
https://doi.org/10.1016/0927-7757(96)03548-0
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Creative Commons Lisansı

İstanbul Üniversitesi Akademik Arşiv Sistemi (ilgili içerikte aksi belirtilmediği sürece) Creative Commons Alıntı-GayriTicari-Türetilemez 4.0 Uluslararası Lisansı ile lisanslanmıştır.

DSpace software copyright © 2002-2016  DuraSpace
Contact Us | Send Feedback
Theme by 
Atmire NV