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Formation and structures of anisotropic gels 1. Anisotropic gels of a laminated structure

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  • Polymer Science
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Summary

The conditions of the formation of laminated structures during calcium ion diffusion into sodium alginate solution have been investigated. These structures arise only under conditions excluding convection. After their formation the alginate concentrates near the diffusion boundary. Freezing and thawing of the gels with laminated structures leads to their exfoliation over the surfaces perpendicular to the diffusion direction.

Zusammenfassung

Die Voraussetzungen für die Entstehung von Schichtstrukturen bei der Diffusion von Kalziurnionen in Natriumalginatlösung wurden untersucht. Diese Strukturen bilden sich nur in Abwesenheit von Konvektion. Ihrer Entstehung folgt eine Konzentrierung von Alginat nahe der Diffusionsgrenze. Das Einfrieren und Auftauen von Gelen mit Schichtstruktur führt zur Exfoliation über die Fläche senkrecht zur Diffusionsrichtung.

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References

  1. Thiele, H., Histolyse und Histogenese. Gewebe und ionotrope Gele. Prinzip einer Strukturbildung (Frankfurt/Main 1967).

  2. Slonimsky, G. L., V. B. Tolstoguzov, andD. B. Izyumov, Vysokomolek. soed.B 12, 409 (1970).

    Google Scholar 

  3. Krasiteli dlya tekstil'noi promyshlennosti. Koloristicheskii spravochnik,p.r. A. L. Bel'skogo, V. V. Karpova, p. 198 (Moscow 1971).

  4. Braudo, E. E., A. A. Frolov, V. I. Surovtsev, D. B. Izyumov, V. B. Tolstoguzov, andI. G. Plashchina, Zav. lab.36, 1412 (1970).

    Google Scholar 

  5. Bath, J. H., Analyst83, 451 (1958).

    Google Scholar 

  6. McGregor, A. J., Analyst75, 211 (1950).

    Google Scholar 

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Tolstoguzov, V.B. Formation and structures of anisotropic gels 1. Anisotropic gels of a laminated structure. Colloid & Polymer Sci 253, 109–113 (1975). https://doi.org/10.1007/BF01775674

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  • DOI: https://doi.org/10.1007/BF01775674

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