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Studies on Mixed Micellizations of Sodium Dodecanoate and Sodium Octanoate by Means of Electric Conductivity and Light Scattering
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 Title & Authors
Studies on Mixed Micellizations of Sodium Dodecanoate and Sodium Octanoate by Means of Electric Conductivity and Light Scattering
Park, Il Hyun; Jang, Han Woong; Baek, Seung Hwan;
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 Abstract
The critical micelle concentration (CMC), the counter ion binding constant (B) and the aggregation number (N* ) for the mixed micellization of sodium dodecanoate and sodium n-octanoate as two anionic surfactants have been investigated by means of electric conductivity and light scattering. As its experimental results are found to be deviated from ideal mixed model, thus two different kinds of regular solution models such as Rubingh and Motomura are used for interpreting our experimental data. The stability of the mixed micelles has been confirmed from the negative values of the standard Gibbs energy of mixed micellization ΔGmicel,0 over all compositions and the measured values of ΔGmicel,0 agreed with the theoretical ones within the experimental error.
 Keywords
Mixed surfactant;Critical micelle concentration;Rubingh model;Light scattering;Aggregation number;
 Language
Korean
 Cited by
1.
광산란법에 의한 중성고분자/나트륨 도데카노에이트 수용액계에서의 임계응집농도 거동 연구,장한웅;박일현;

폴리머, 2016. vol.40. 6, pp.880-890 crossref(new window)
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