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Some peculiar properties of cross-linked polyvinyl alcohol (CL-PVA) related to the reticulation degree

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Summary

Unlike usual polyhydroxilic packing materials for liquid chromatography based on cross-linked agarose, CL-amylose and CL-dextrans (Sephadex), the cross-linked PVA gels exhibit an increase of swelling properties with the reticulation degree, up to a certain limit. Afterwards more advanced reticulation degrees induce a decrease in swelling capacities just as in case of other cross-linked polyhydroxilic polymers. This abnormal behaviour of CL-PVA was supposed as being due to the interchain hydrogen associations. IR spectra, X-ray data and 8 M urea treatments strongly supported our supposition pointing out a maximum association by hydrogen bonds in CL-PVA gels with a reduced degree of reticulation.

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References

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Authors and Affiliations

  1. Institute of Biological Sciences, Spl. Independentei 296, 77748, Bucharest 17, Romania

    M. A. Mateescu & H. D. Schell

  2. Department of Organic Chemistry and Technology, Bucharest Polytechnical Institute, Romania

    M. Dimonie & O. Maior

  3. Institute for Physics and Technology of Materials, Bucharest

    S. Todireanu

Authors
  1. M. A. Mateescu
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  2. H. D. Schell
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  3. M. Dimonie
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  4. S. Todireanu
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  5. O. Maior
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Mateescu, M.A., Schell, H.D., Dimonie, M. et al. Some peculiar properties of cross-linked polyvinyl alcohol (CL-PVA) related to the reticulation degree. Polymer Bulletin 11, 421–427 (1984). https://doi.org/10.1007/BF00265481

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  • DOI: https://doi.org/10.1007/BF00265481

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