Science Links Japan | Solution Behavior of the Crystalline Molecular Complexes of Aromatic Compounds with Cationic Surfactants in Methanol Studied by Vapor Pressure Osmometry.

Solution Behavior of the Crystalline Molecular Complexes of Aromatic Compounds with Cationic Surfactants in Methanol Studied by Vapor Pressure Osmometry.

Accession number;01A0903175

Title;Solution Behavior of the Crystalline Molecular Complexes of Aromatic Compounds with Cationic Surfactants in Methanol Studied by Vapor Pressure Osmometry.

Author; IIMURA NAHOKO (Niigatayakudai Yaku) ICHIKAWA HARUYO (Niigatayakudai Yaku) HIRATA HIROTAKA (Niigatayakudai Yaku)

Journal Title;Netsu Sokutei Toronkai Koen Yoshishu

Journal Code:F0840B

ISSN:

VOL.36th;NO.;PAGE.84-85(2000)

Figure&Table&Reference;FIG.3

Pub. Country;Japan

Language;Japanese

Abstract;It is well known that in aqueous media, surfactants form molecular aggregates(micelles) a certain concentration above cmc, and the micelles begin to solubilize any oily materials otherwise insoluble to water. In these few years we have reported that from these solubilized solution systems of cationic surfactants provide many types of crystalline molecular complexes with several aromatic substances such as various phenolic derivatives and basic substances. The complexes isolated were very stable. We analysed the complex structures by X-ray diffraction method and revealed they had similar type of interaction between the surfactant and the additive molecules. Interesting to know how these complexes behave in solution motivated to investigate them firstly in nonaqueous media such as methanol and chloroform by vapor pressure osmometry. This experiment resulted in reaching a conclusion that in those nonaqueous media the complexes were caused by complete dissociation. (author abst.)

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