Temperature effect on the adsorption and micelle formation of aqueous dodecyltrimethylammonium chloride-hexane system

Koji Abe, Ichiro Kajiwara, Norihiro Ikeda, Makoto Aratono, Kinsi Motomura

研究成果: Contribution to journalArticle査読

4 被引用数 (Scopus)

抄録

The adsorption at water/hexane interface and micelle formation of dodecyltrimethylammonium chloride (DTAC) were studied by measuring its interfacial tension as a function of temperature under atmospheric pressure at various concentrations around the critical micelle concentration (cmc). By applying the thermodynamic equations developed previously, the entropy and energy changes associated with the adsorption from monomeric and micellar states were estimated and compared with those of the DTAC solution-air system. It was found that the entropy and energy of the adsorbed film of DTAC are remarkably depressed by the coexistent hexane phase. This finding explains the positive entropy change associated with the adsorption of DTAC at water/air interface.

本文言語英語
ページ(範囲)5-10
ページ数6
ジャーナルBulletin of the Chemical Society of Japan
64
1
DOI
出版ステータス出版済み - 1 1991

All Science Journal Classification (ASJC) codes

  • Chemistry(all)

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