Papavoine, C.h.m.; Maas, W.e.j.r.; Veeman, W.s.; Werumeus Buning, G.h.; Vankan, J.m.j.:
Triple-resonance proton-fluorine-19-carbon-13 CPMAS NMR study on the crystallization behavior of the PMMA/poly(vinylidene fluoride) 60/40 blend.
1993
In: Macromolecules (Macromolecules), Jg. 26 (1993), Heft 24, S. 6611 - 6616
Artikel/Aufsatz in Zeitschrift1993Chemie
Titel:
Triple-resonance proton-fluorine-19-carbon-13 CPMAS NMR study on the crystallization behavior of the PMMA/poly(vinylidene fluoride) 60/40 blend.
Autor(in):
Papavoine, C.h.m.; Maas, W.e.j.r.; Veeman, W.s.LSF; Werumeus Buning, G.h.; Vankan, J.m.j.
Erscheinungsjahr
1993
Erschienen in:
Titel:
Macromolecules (Macromolecules)
in:
Jg. 26 (1993), Heft 24, S. 6611 - 6616
ISSN:

Abstract:

The authors introduce a new approach to study phase sepn. phenomena in polymer blends. The crystn. of poly(vinylidene fluoride) (I) in a 60:40 blend with Me methacrylate-Me acrylate copolymer (II) is investigated using triple-resonance 1H-13C-19F cross-polarization magic-angle spinning NMR. This technique enables the detn. of the fractions of II and I that are not mixed at a mol. scale. DSC measurements are performed which give information about the degree of crystallinity in the blend. The presence of an amorphous I interphase is found, confirming recent studies on the existence of such an interphase upon crystn. The different crystn. behavior between a 60:40 II-I blend annealed at 120 Deg and a blend annealed at 140 Deg suggests the existence of an upper crit. soln. temp. for this system.