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Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
Dependence of electrical conductivity σ on surfactant concentration for gemini surfactants 13-s-13 with the spacer length s =3, 4, 5, 6, 8, 10, and 12 carbon atoms.