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Phase behavior of polyoxyethylene modified silicone with water

  • Surfactant Colloids
  • Conference paper
  • First Online:
Trends in Colloid and Interface Science XII

Part of the book series: Progress in Colloid & Polymer Science ((PROGCOLLOID,volume 110))

Abstract

The phase behavior of polyoxyethylene modified silicone (PEOS) in water and water-oil system was investigated. In a water system, hydrophilic PEOS, whose HLB value is 13, forms only a hexagonal liquid crystal phase, while lamellar and reverse hexagonal phases are produced in a lipophilic PEOS (HLB value=6) system. In the latter system, these liquid crystals are formed at a rather high surfactant concentration compared to an ordinary polyoxyethylene nonionic surfactant-water system. The detailed structures of these liquid crystals were determined by small-angle X-ray scattering (SAXS).

The ternary phase diagrams of water/lipophilic PEOS/silicone oil or hexadecane were also constructed at constant temperature (25 °C). In the case of silicone oil, the reverse micellar solution or W/O microemulsion (Om) solubilizes a large amount of water whereas the surfactant is practically insoluble in hexadecane.

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Author information

Authors and Affiliations

  1. Shiga Central Research Laboratory, Noevir Co., LTD, Okada-cho 112-1, 527, Youkaichi-shi, Japan

    T. Iwanaga & Y. Shiogai

  2. Graduate School of Engineering, Yokohama National University, Tokiwadai 79-5 Hodogaya-ku, 240, Yokohama, Japan

    H. Kunieda

Authors
  1. T. Iwanaga
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  2. Y. Shiogai
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  3. H. Kunieda
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Editor information

G. J. M. Koper D. Bedeaux C. Cavaco W. F. C. Sager

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© 1998 Dr. Dietrich Steinkopff Verlag GmbH & Co. KG

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Iwanaga, T., Shiogai, Y., Kunieda, H. (1998). Phase behavior of polyoxyethylene modified silicone with water. In: Koper, G.J.M., Bedeaux, D., Cavaco, C., Sager, W.F.C. (eds) Trends in Colloid and Interface Science XII. Progress in Colloid & Polymer Science, vol 110. Steinkopff. https://doi.org/10.1007/BFb0118081

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  • DOI: https://doi.org/10.1007/BFb0118081

  • Published:

  • Publisher Name: Steinkopff

  • Print ISBN: 978-3-7985-1117-0

  • Online ISBN: 978-3-7985-1653-3

  • eBook Packages: Springer Book Archive

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