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An NMR investigation of phase relations in PVC (Poly Vinyl Chloride)-EVA (Ethylene-Vinyl Acetate Copolymer) blends with impact strength

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Summary

A partial solubility of EVA (45 wt % VAc) in PVC has been shown to exist in all technical samples, and the experiments also show that the polymer components separate completely upon heat treatment of the samples. NMR can be used as a sensitive tool for investigations of materials with small additions of a soft component.

Zusammenfassung

Experimentelle Untersuchungen haben gezeigt, daß eine partielle Lösbarkeit von EVA (45 Gew.-% VAc) in PVC in allen technischen Proben vorliegt. Bei Wärmebehandlung der Proben tritt eine vollständige Separation der Polymerkomponenten auf. Die NMR-Technik läßt sich als empfindliches Instrument für die Untersuchung von Materialien mit geringen Zusätzen von ‘weichen’ Komponenten anwenden.

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References

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Authors and Affiliations

  1. Division of Physical Chemistry, University of Gothenburg, S-402 20, Gothenburg, Sweden

    C. Elmgvist & S. E. Svanson

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  1. C. Elmgvist
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  2. S. E. Svanson
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Elmgvist, C., Svanson, S.E. An NMR investigation of phase relations in PVC (Poly Vinyl Chloride)-EVA (Ethylene-Vinyl Acetate Copolymer) blends with impact strength. Colloid & Polymer Sci 253, 327–328 (1975). https://doi.org/10.1007/BF02352084

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  • DOI: https://doi.org/10.1007/BF02352084

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