Morphology monitoring of PE/PBT blends by reactive processing

Authors

  • I. Pesneau,

    1. Laboratoire d'Etudes des Matériaux Polymères et Biomatériaux, UMR CNRS 5627, Institut des Sciences et Techniques de l'Ingénieur de Lyon, Université Claude Bernard, Lyon I, 43, Boulevard du 11 Novembre 1918, 69 622 Villeurbanne Cedex, France
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  • P. Cassagnau,

    1. Laboratoire d'Etudes des Matériaux Polymères et Biomatériaux, UMR CNRS 5627, Institut des Sciences et Techniques de l'Ingénieur de Lyon, Université Claude Bernard, Lyon I, 43, Boulevard du 11 Novembre 1918, 69 622 Villeurbanne Cedex, France
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  • A. Michel

    Corresponding author
    1. Laboratoire d'Etudes des Matériaux Polymères et Biomatériaux, UMR CNRS 5627, Institut des Sciences et Techniques de l'Ingénieur de Lyon, Université Claude Bernard, Lyon I, 43, Boulevard du 11 Novembre 1918, 69 622 Villeurbanne Cedex, France
    • Laboratoire d'Etudes des Matériaux Polymères et Biomatériaux, UMR CNRS 5627, Institut des Sciences et Techniques de l'Ingénieur de Lyon, Université Claude Bernard, Lyon I, 43, Boulevard du 11 Novembre 1918, 69 622 Villeurbanne Cedex, France
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Abstract

Polyethylene (PE)/poly(butylene terephthalate) (PBT) blends were in situ compatibilized during a processing operation by the addition of a partially hydroxylated ethylene vinyl acetate copolymer (EVAh). This copolymer, obtained from ethylene vinyl acetate (EVA), was as compatible with PE as EVA was before modification. In the presence of EVAh, the dispersion of PBT in the PE matrix was finer, and the interfacial adhesion was improved. These results are relevant for the compatibilization of PE/PBT blends. Moreover, such blends present good toluene barrier properties. © 2001 John Wiley & Sons, Inc. J Appl Polym Sci 82: 3568–3577, 2001

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