Summary
A study on the solution grafting of monoethylmaleate onto a saturated ethylene-propylene rubber was conducted. The grafting degree was followed by titration methods as function of the time of reaction and amount of initiator. The insertion of unsaturated molecules always led to some degradation of the polymeric backbone. The subsequent cyclization reaction of grafted monoethylmaleate to maleic anhydride was also studied by Fourier Transform Infrared Spectroscopy either in bulk or in solution. A different behaviour was found in the two cases; furthermore, a different mechanism of reaction led to different amounts of inter- and intra-chain anhydride formation.
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Lanzetta, N., Laurienzo, P. & Malinconico, M. Functionalization of ethylene-propylene saturated rubbers: a study on the grafting of monoethylmaleate and its cyclization reaction. Polymer Bulletin 22, 603–610 (1989). https://doi.org/10.1007/BF00718941
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DOI: https://doi.org/10.1007/BF00718941