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タイトル: Aqueous solution properties of pyridinium-type perfluorinated surfactants and simulation of mixture CMC
著者: Ishikawa, Kenji
Miyagishi, Shigeyoshi
Asakawa, Tsuyoshi link image link image
浅川, 毅
宮岸, 重好
発行日: 2001年 8月
出版社(者): Elsevier
引用: Journal of Colloid and Interface Science, 240 (1), pp. 365-367
雑誌名: Journal of Colloid and Interface Science
ISSN: 0021-9797
巻: 240
号: 1
開始ページ: 365
終了ページ: 367
キーワード: 1,1,2,2-tetrahydroperfluoroalkylpyridinium chloride
group contribution method
demixing region
micelle ionization degree
mixture CMC
抄録: The critical micelle concentrations (CMCs) of 1,1,2,2-tetrahydroperfluoroalkylpyridinium chloride have been determined by measurements of surface tension and electrical conductivity, etc. The CMCs of perfluorinated surfactants were only about 0.02 times that of hydrocarbon one with the same carbon number. Aqueous solutions of fluorocarbon surfactants gave low surface tensions in comparison with those of hydrocarbon surfactants. The area per surfactant molecule at the air–water interface decreased with increasing length of the fluorocarbon chain. Electromotive force measurements were made with chloride-responsive electrodes on surfactants solutions. The micelle ionization degrees decreased with increasing length of the alkyl chain. The group contribution method simulated the mixture CMCs of binary surfactants with various alkyl chain lengths. The group contribution method proved to be very useful to predict not only the mixture CMCs but also the demixing regions of binary mixtures having great differences in CMC.
URI: http://hdl.handle.net/2297/1670
関連URI: http://dx.doi.org/10.1006/jcis.2001.7647
http://www.elsevier.com/locate/issn/00219797
資料種別: Journal Article
版表示: author
出現コレクション:1.査読済論文(工)

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