Summary
By variable temperature proton enhanced magic angle spinning 13C NMR below Tg individual conformational diads could be resolved for glassy phase segments in semicrystalline erythrodiisotactic poly(1,2-dimethyltetramethylene). An assignment based on γ-shift increments associated with antigauche conformational transitions is given. In addition an improved interpretation of conformational effects in the glassy phase solid state spectrum of amorphous threodiisotactic poly(1,2-dimethyltetramethylene) is presented.
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Gronski, W., Möller, M. & Cantow, H.J. Micro and macroconformation of macromolecules. Polymer Bulletin 8, 503–510 (1982). https://doi.org/10.1007/BF00262928
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DOI: https://doi.org/10.1007/BF00262928