Kentgens, A.p.m.; De Jong, A.f.; De Boer, E.; Veeman, W.s.:

A 2D-exchange NMR study of very slow molecular motions in crystalline poly(oxymethylene).

In: Macromolecules (Macromolecules), Jg. 18 (1985) ; Nr. 5, S. 1045-1048
ISSN: 0024-9297
Zeitschriftenaufsatz / Fach: Chemie
Very slow mol. motions were detected in cryst. polyoxymethylene at 25 and 50 Deg by 2D-exchange NMR in a slowly rotating sample. These motions are assocd. with the a-relaxation obsd. in mech. and dielec. loss measurements. The assocn. of this relaxation with a cryst. mechanism was confirmed.