Adsorption at water/air interface and micelle formation of decylammonium bromide and decylammonium chloride mixture

Hitoshi Matsuki, Naoko Ando, Makoto Aratono, Kinsi Motomura

研究成果: Contribution to journalArticle査読

18 被引用数 (Scopus)

抄録

The surface tension of the aqueous solution of decylammonium bromide (DeAB) and decylammonium chloride (DeAC) mixture was measured as a function of the total molality and composition of surfactants at 298.15 K under atmospheric pressure. By applying the thermodynamic equations derived previously to the experimental results, the compositions in the mixed adsorbed film and mixed micelle were evaluated. It was found that the adsorbed film and micelle are rich in DeAB, which is more surface active than DeAC, compared with the aqueous solution. Further, the DeAB and DeAC molecules were concluded to mix ideally in the states of the adsorbed film and micelle. On the other hand, the compositions were compared with those of dodecylammonium chloride (DAC)-DeAC mixture at the critical micelle concentration (one). The discrep-ancy between the compositions was proved to be related closely to the differences between the erne's and between the surface tension values at the cmc of pure surfactants.

本文言語英語
ページ(範囲)2507-2511
ページ数5
ジャーナルBulletin of the Chemical Society of Japan
62
8
DOI
出版ステータス出版済み - 8 1989

All Science Journal Classification (ASJC) codes

  • 化学 (全般)

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