Abstract
When copolymerizing vinyl type monomers, the number of possible diads, triads and higher sequences, which are distinguishable by NMR, depends on how many comonomers form asymmetric or pseudoasymmetric α-C-atoms during enchainment. For simplicity, in the following the term asymmetric α-C-atom is to include pseudoasymmetric α-C-atoms. Considering only the number of triads in the case of binary copolymers, there are 6 triads possible if none of the two comonomers forms an asymmetric α-C-atom, 10 triads if one of the monomers forms an asymmetric center, and 20 triads if both form an asymmetric α-C-atom.
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Klesper, E., Gronski, W., Johnsen, A. (1971). Complete Triad Assignment of Methylmethacrylate-Methacrylic Acid Copolymers. In: Diehl, P., Fluck, E., Kosfeld, R. (eds) Natural and Synthetic High Polymers. NMR Basic Principles and Progress / NMR Grundlagen und Fortschritte, vol 4. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-65089-5_3
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DOI: https://doi.org/10.1007/978-3-642-65089-5_3
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