Abstract
This paper demonstrates the utility of 19 F/ 13 C chemical shift correlation 2D-NMR experiments for characterizing fluoropolymers. 19 F{ 13 C} HMQC and HMBC (with simultaneous 1 H decoupling) provide greatly simplified spectra with almost no loss of sensitivity compared to the routinely used 1 H-{ 13 C} heteronuclear multiple-quantum coherence (HMQC) and heteronuclear multiple-bond connectivity (HMBC) NMR experiments and exploit the large chemical shift dispersion of both 13 C and 19 F nuclei to achieve tremendous spectral dispersion. The utility of these methods in obtaining resonance assignments is illustrated using spectra of poly(1-chloro-1-fluoroethylene-co-isobutylene).
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