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Viscometric and transmitted light investigation of agarose and agarose-guar water systems

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Summary

Agarose water solutions of different concentrations and agarose-guar water solutions of 1% (w/w) total concentration and varied compositions were submitted to viscometric and turbidimetric measurements as function of the temperature. Phase diagrams for both systems are compared. For agarose solutions, phase separation occurs prior to gelation within a certain concentration range, and network formation seems to take place by the connectivity of the polymer-rich domains. For the mixed agarose-guar system, the homogeneous solutions gel directly.

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Authors and Affiliations

  1. Instituto de Macromoleculas, Universidade Federal do Rio de Janeiro, P.O. Box 68525, 20000, Rio de Janeiro, Brasil

    C. T. Andrade & R. B. Garcia

  2. Instituto de Fisica, Universidade Federal do Rio de Janeiro, P.O. Box 68528, 20000, Rio de Janeiro, Brasil

    T. Abritta

Authors
  1. C. T. Andrade
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  2. R. B. Garcia
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  3. T. Abritta
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Andrade, C.T., Garcia, R.B. & Abritta, T. Viscometric and transmitted light investigation of agarose and agarose-guar water systems. Polymer Bulletin 27, 297–304 (1991). https://doi.org/10.1007/BF00294535

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  • DOI: https://doi.org/10.1007/BF00294535

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