Variable‐temperature high‐resolution carbon‐13 studies of molecular motion in solid bisphenol‐F diglycidyl ether | Zendy

Casarini Daniele | Zendy; Harris Robin K. | Zendy; Kenwright Alan M. | Zendy

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Variable‐temperature high‐resolution carbon‐13 studies of molecular motion in solid bisphenol‐F diglycidyl ether

Author(s) -

Casarini Daniele,

Harris Robin K.,

Kenwright Alan M.

Publication year - 1992

Publication title -

magnetic resonance in chemistry

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.483

H-Index - 72

eISSN - 1097-458X

pISSN - 0749-1581

DOI - 10.1002/mrc.1260300515

Subject(s) - chemistry , diglycidyl ether , analytical chemistry (journal) , magic angle spinning , magic angle , polarization (electrochemistry) , atmospheric temperature range , nuclear magnetic resonance , spectral line , molecule , epoxy , nuclear magnetic resonance spectroscopy , bisphenol a , thermodynamics , stereochemistry , organic chemistry , physics , astronomy

Variable‐temperature cross‐polarization magic‐angle spinning solid‐state 13 C NMR spectra of bisphenol‐F diglycidyl ether were obtained in the temperature range 25–67°C. Dynamic phenomena are observed, and the experimental data are in accord with an inhomogeneous distribution of correlation times, perhaps related to a second‐order phase change. Single‐pulse excitation experiments under comparable conditions confirmed the presence of motional inhomogeneity, characterized by a fraction of mobile molecules within the sample. Differential scanning calorimetric measurements revealed a phase transition at ca. 50 °C.

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