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Phase separation kinetics in silica sol-gel system containing polyethylene oxide. I. Initial stage

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Abstract

Domain formation kinetics in gelling alkoxy-derived silica solutions containing polyethylene oxide (PEO) has been investigated. The time-resolved light scattering measurement was performed for the polymerizing solutions which underwent phase separation in the length scale of micrometer. Domain formation processes which resulted in various sizes of inter-connected morphology were examined, focusing mainly on the initial stage. For all the samples, the scattering intensity grew exponentially with time forming a single peak at a fixed wave-number in the first few tens seconds, which is the characteristic of the linearized regime of the spinodal decomposition. An analysis based on the linearized theory proposed by Cahn gave a reasonable description of the kinetic parameter of phase separation induced in various stages of the sol-gel transition.

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References

  1. Nakanishi, K. and Soga, N., J. Am. Ceram. Soc., 74, 2518–30 (1991).

    Google Scholar 

  2. Nakanishi, K. and Soga, N., J. Non-Cryst. Solids, 139, 1–13 (1992).

    Google Scholar 

  3. Nakanishi, K. and Soga, N., in Chemical Processing of Advanced Materials, eds. L.L., Hench, and West, J.K., John Wiley & Sons Inc., New York, 1992. Chap. 3

    Google Scholar 

  4. Nakanishi, K., Yamasaki, Y., Kaji, H., and Soga, N., Proceedings of 2nd Izumi Forum (Osaka), Ed. S. Sakka, to be Published.

  5. Hashimoto, T., Kumaki, J., and Kawai, H., Macromolecules, 16, 641–648 (1983).

    Google Scholar 

  6. Nakanishi, K., Komura, H., Takahashi, R., and Soga, N., submitted to J. Sol-Gel Sci. Tech.

  7. Nakanishi, K., Yamasaki, Y., Kaji, H., Soga, N., Inoue, T., and Nemoto, N., in preparation.

  8. Cahn, J.W., J. Chem. Phys., 42, 93–99 (1965).

    Google Scholar 

  9. For example, see; Sasaki, K. and Hashimoto, T., Macromolecules, 17, 2818–2815 (1984); Lee, H.-S., Kyu, T., Gadkari, A., Kennedy, J.P., Macromolecules, 24, 4852–4856 (1991).

    Google Scholar 

  10. Langer, J.S., Bar-on, M., and Miller, H.D., Phys. Rev. A, 11(4), 1417–1429 (1975).

    Google Scholar 

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Authors and Affiliations

  1. Division of Material Chemistry, Faculty of Engineering, Kyoto University, Sakyo-ku, 606-01, Kyoto, Japan

    Kazuki Nakanishi, Yuki Yamasaki, Hironori Kaji & Naohiro Soga

  2. Institute for Chemical Research, Kyoto University, Uji, 611, Kyoto-fu, Japan

    Tadashi Inoue & Norio Nemoto

Authors
  1. Kazuki Nakanishi
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  2. Yuki Yamasaki
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  3. Hironori Kaji
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  4. Naohiro Soga
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  5. Tadashi Inoue
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  6. Norio Nemoto
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Nakanishi, K., Yamasaki, Y., Kaji, H. et al. Phase separation kinetics in silica sol-gel system containing polyethylene oxide. I. Initial stage. J Sol-Gel Sci Technol 2, 227–231 (1994). https://doi.org/10.1007/BF00486246

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  • DOI: https://doi.org/10.1007/BF00486246

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