Maleic anhydride-grafted polypropylene: FTIR study of a model polymer grafted by ene-reaction |
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Authors: | M. Sclavons M. Laurent J. Devaux V. Carlier |
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Affiliation: | Université Catholique de Louvain, Unité de Physique et de Chimie des Hauts Polymères, Place Croix du Sud, 1, B-1348 Louvain-la-Neuve, Belgium |
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Abstract: | Ene-grafting of maleic anhydride on polypropylene previously enriched in double bonds by β-scission was promoted in order to obtain model grafted polypropylene. Ene-grafting was carried out in the presence of a radical-scavenger in order to limit at a minimum side-grafting and in presence of catalyst (SnCl2) in order to maximise the ene-grafting. Nevertheless, it does not lead to high grafting content.Ene-grafted PP confirms the single end-grafted succinic anhydride FTIR assignment at 1792 cm−1 (CO symmetric stretching) while a disubstitution is also observed leading to a shift to a 1784 cm−1 absorption band. This latter band was more generally assigned to interacting anhydride (CO) instead of an assignment to the particular polyanhydride species (as previously assigned by our team [De Roover B, Sclavons M, Carlier V, Devaux J, Legras R, Momtaz A. J Polym Sci, Part A: Polym Chem 1995;33:829. [14]]). |
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Keywords: | Maleic anhydride grafted polypropylene Ene-reaction FTIR spectra |
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