Kentgens, A.p.m.; De Boer, E.; Veeman, W.s.:
Super-slow motions in crystalline polyoxymethylene. A complete elucidation using 2D solid state NMR.
In: Integr.Fundam.Polym.Sci.Technol.--2, - Rolduc, 1988, S. 164 - 168
Buchaufsatz/Kapitel in Sammelwerk / Fach: Chemie
Titel:
Super-slow motions in crystalline polyoxymethylene. A complete elucidation using 2D solid state NMR.
Autor(in):
Kentgens, A.p.m.; De Boer, E.; Veeman, W.s. im Online-Personal- und -Vorlesungsverzeichnis LSF anzeigen
Erscheinungsjahr
1988
Erschienen in:
Integr.Fundam.Polym.Sci.Technol.--2, - Rolduc, 1988, S. 164 - 168

Abstract:

Super-slow motions in the cryst. parts of poly(oxymethylene) were detected and fully characterized by the detn. of the 13C-NMR chem. shift tensor in the mol. via 2-dimensional (D) correlation of dipolar interactions and chem. shifts. The helical chains performed a screw-like rotation over +-200 Deg with activation energy of 20 +- 5 kcal/mol.