Abstract
In 1H-nuclear-magnetic-resonance spectra of poly(chloroprene—methyl methacrylate), the signal assigned to the OCH3 protons was split into five or six peaks by the addition of tris(dipivalomethanato)europium(III). These splittings were assinged tentatively to the methoxy protons of the central methyl methacrylate unit in the pentad sequences. The above peaks were resolved into six Lorenzian components by a curve resolver, and the fractions of the pentad sequences were obtained from the relative peak areas. Each observed concentration was in close agreement with that calculated by the copolymerization theory.
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Okada, T., Izuhara, M. & Hashimoto, T. A Study of Chloroprene and Methyl Methacrylate Radical Copolymers by 1H-NMR Spectra Shifted by the Use of Tris(dipivalomethanato)europium(III). Polym J 7, 1–7 (1975). https://doi.org/10.1295/polymj.7.1
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DOI: https://doi.org/10.1295/polymj.7.1