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Conformation-dependent interactions between ionic polysaccharides and counterions in dilute aqueous solution

Potentiometric, calorimetric, and optical activity studies

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Summary

The interaction of Cu2+ ions with dextran sulfate and with i-carrageenan, respectively, in dilute aqueous solution has been studied by means of potentiometric, optical rotation, and microcalorimetric measurements.

Distinct anomalies are found in the physico-chemical behaviour of i-carrageenan as a consequence of Cu2+ binding, which are ascribed to a conformational transition of the polysaccharide chains.

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References

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Authors and Affiliations

  1. Istituto di Chimica Rsica, Università di Roma, Roma, Italy

    V. Crescenzi, M. Dentini, G. Paradossi & R. Rizzo

Authors
  1. V. Crescenzi
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  2. M. Dentini
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  3. G. Paradossi
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  4. R. Rizzo
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Crescenzi, V., Dentini, M., Paradossi, G. et al. Conformation-dependent interactions between ionic polysaccharides and counterions in dilute aqueous solution. Polymer Bulletin 1, 777–784 (1979). https://doi.org/10.1007/BF00256279

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  • DOI: https://doi.org/10.1007/BF00256279

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