PREPARATION AND CHARACTERIZATION OF NEW ORGANOPHILIC SMECTITES

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概要

• 論文の詳細を見る

• New organophilic smectites were prepared by introducing quaternary ammonium cations containing polyoxyethylene (PEO) group into the interlayer of synthetic smectite (hectorite). The organophilic smectites formed a colloidally stable dispersion in polar organic solvents such as aprotic solvents and fatty alcohols to show high apparent viscosity. The stability of the dispersion of the organophilic smectites arose from the incorporation of the organic solvent molecules to the interlayer gallery of the organophilic smectites. The incorporation of the organic solvent molecules was caused by solvation to oxyethylene (EO) groups and hydroxyl groups in the guest cation and by affinity for the interlayer matrix. In the case of organophilic smectite dispersion in ethanol, the apparent viscosity was enhanced up to several times by the addition of water to the system. Maximal apparent viscosity was obtained at 10 wt.% of water content, where the dispersed particle size was markedly reduced. Consequently these phenomena can be accounted for by the role of water as polar activator in the organophilic smectite dispersion.

• 日本粘土学会の論文

著者

• NARITA EIICHI

  Department of Frontier Materials and Function Engineering, Graduate School of Engineering, Iwate Uni

• Narita Eiichi

  Department Of Applied Chemistry And Molecular Science Faculty Of Engineering Iwate University

• Narita Eiichi

  Department Of Chemical Engineering Faculty Of Engineering Iwate University

• TORII Kazuo

  Tohoku National Industrial Research Institute

• Iwasaki T

  Nagoya Inst. Technol. Nagoya

• Hayashi H

  Toyota Central Res. And Develop. Labs. Inc.

• Torii K

  Inorganic Materials Section Molecular Chemistry Division Tohoku National Industrial Research Institu

• Hayashi Hiromu

  Department Of Chemical Science And Technology Faculty Of Engineering The University Of Tokushima

• SEKIMOTO TAKAHIRO

  CO-OP Chemical Co., Ltd., New Materials Division

• IWASAKI TAKASHI

  Tohoku National Industrial Research Institute

• HAYASHI HIROMICHI

  Tohoku National Industrial Research Institute

• Sekimoto Takahiro

  Co-op Chemical Co. Ltd. New Materials Division

• Iwasaki Takashi

  Inorganic Materials Section Molecular Chemistry Division Tohoku National Industrial Research Institu

• 林 久治

  Department of Chemical Science and Technology, Faculty of Engineering, The University of Tokushima

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