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Reactive extrusion process for the grafting of maleic anhydride onto linear low-density polyethylene with ultraviolet radiation

Authors

  • H. Saade-Caballero,

    Corresponding author
    1. Centro de Investigación en Química Aplicada, Blvd. Enrique Reyna Hermosillo 140, Saltillo, Coahuila, México 25253
    • Centro de Investigación en Química Aplicada, Blvd. Enrique Reyna Hermosillo 140, Saltillo, Coahuila, México 25253
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  • J. G. Martínez-Colunga

    1. Centro de Investigación en Química Aplicada, Blvd. Enrique Reyna Hermosillo 140, Saltillo, Coahuila, México 25253
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Abstract

In this work, we chemically modified linear low-density polyethylene with maleic anhydride in the molten state using, in a first step, different doses of ultraviolet irradiation to generate hydroperoxide groups, which were highly reactive at the processing temperature. Then, in a second reactive extrusion step, maleic anhydride was grafted to the linear low-density polyethylene under different processing conditions. Characterization of the modified and unmodified linear low-density polyethylene material was performed with Fourier transform infrared spectroscopy, differential scanning calorimetry, and nuclear magnetic resonance. © 2009 Wiley Periodicals, Inc. J Appl Polym Sci, 2009

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