Abstract
Nuclear magnetic resonance has become a very powerful, versatile tool for studying the structures of polymers and copolymers. The value of this technique is that it enables one to measure the relative concentrations of nuclei in particular environments in polymer chains. The technique is very discriminating and can be used, for example, to determine the relative concentrations of groups in triadic (e.g., B\( \mathop{\text{B}}\limits^{ * } \)B vs. A\( \mathop{\text{B}}\limits^{ * } \)A) or pentadic (e.g., BB\( \mathop{\text{B}}\limits^{ * } \)BB vs. AB\( \mathop{\text{B}}\limits^{ * } \)BB) environments in A — B copolymers. In addition, nuclear magnetic resonance can measure the relative amounts of various monomer junctions (diads, e. g., B — B or A — B) or of particular monomer sequence junctions (tetrads, e. g., BB — AB, or hexads, e. g., BBB — AAA), provided the junctions contain nuclei that can be studied.
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Harwood, H.J. (1971). Problems of Aromatic Copolymer Structure. 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_4
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DOI: https://doi.org/10.1007/978-3-642-65089-5_4
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