ADSORPTION OF DODECYLTRIMETHYLAMMONIUM CHLORIDE-DECYLAMMONIUM CHLORIDE MIXTURES AT WATER/AIR INTERFACE.

Shozo Uryu; Makoto Aratono; Michio Yamanaka; Kinsi Motomura; Ryohei Matuura

doi:10.1246/bcsj.56.3219

ADSORPTION OF DODECYLTRIMETHYLAMMONIUM CHLORIDE-DECYLAMMONIUM CHLORIDE MIXTURES AT WATER/AIR INTERFACE.

Shozo Uryu, Makoto Aratono, Michio Yamanaka, Kinsi Motomura, Ryohei Matuura

Center of Environment and Safety

Research output: Contribution to journal › Article › peer-review

13 Citations (Scopus)

Abstract

The surface tension of the aqueous solution of dodecyltrimethylammonium chloride and decylammonium chloride mixture has been measured as a function of the total concentration and composition of the surfactants at 298. 15 K under atmospheric pressure. It has been observed that the surface tension decreases with an increase in the composition of dodecyltrimethylammonium chloride at a fixed total concentration. A break point has been observed on the surface tension vs. total concentration curve. By applying the thermodynamic relations, the surface densities of surfactants have been evaluated numerically. It is proved that the phase transition of the mixed adsorbed film takes place from a gaseous to an expanded state at the break point.

Original language	English
Pages (from-to)	3219-3223
Number of pages	5
Journal	Bulletin of the Chemical Society of Japan
Volume	56
Issue number	11
DOIs	https://doi.org/10.1246/bcsj.56.3219
Publication status	Published - 1983

All Science Journal Classification (ASJC) codes

Chemistry(all)

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10.1246/bcsj.56.3219

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title = "ADSORPTION OF DODECYLTRIMETHYLAMMONIUM CHLORIDE-DECYLAMMONIUM CHLORIDE MIXTURES AT WATER/AIR INTERFACE.",

abstract = "The surface tension of the aqueous solution of dodecyltrimethylammonium chloride and decylammonium chloride mixture has been measured as a function of the total concentration and composition of the surfactants at 298. 15 K under atmospheric pressure. It has been observed that the surface tension decreases with an increase in the composition of dodecyltrimethylammonium chloride at a fixed total concentration. A break point has been observed on the surface tension vs. total concentration curve. By applying the thermodynamic relations, the surface densities of surfactants have been evaluated numerically. It is proved that the phase transition of the mixed adsorbed film takes place from a gaseous to an expanded state at the break point.",

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year = "1983",

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language = "English",

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T1 - ADSORPTION OF DODECYLTRIMETHYLAMMONIUM CHLORIDE-DECYLAMMONIUM CHLORIDE MIXTURES AT WATER/AIR INTERFACE.

AU - Uryu, Shozo

AU - Aratono, Makoto

AU - Yamanaka, Michio

AU - Motomura, Kinsi

AU - Matuura, Ryohei

PY - 1983

Y1 - 1983

N2 - The surface tension of the aqueous solution of dodecyltrimethylammonium chloride and decylammonium chloride mixture has been measured as a function of the total concentration and composition of the surfactants at 298. 15 K under atmospheric pressure. It has been observed that the surface tension decreases with an increase in the composition of dodecyltrimethylammonium chloride at a fixed total concentration. A break point has been observed on the surface tension vs. total concentration curve. By applying the thermodynamic relations, the surface densities of surfactants have been evaluated numerically. It is proved that the phase transition of the mixed adsorbed film takes place from a gaseous to an expanded state at the break point.

AB - The surface tension of the aqueous solution of dodecyltrimethylammonium chloride and decylammonium chloride mixture has been measured as a function of the total concentration and composition of the surfactants at 298. 15 K under atmospheric pressure. It has been observed that the surface tension decreases with an increase in the composition of dodecyltrimethylammonium chloride at a fixed total concentration. A break point has been observed on the surface tension vs. total concentration curve. By applying the thermodynamic relations, the surface densities of surfactants have been evaluated numerically. It is proved that the phase transition of the mixed adsorbed film takes place from a gaseous to an expanded state at the break point.

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