Maleic anhydride-grafted polypropylene: FTIR study of a model polymer grafted by ene-reaction

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]]).