Abstract
Triple-channel solid-state NMR investigations of two different poly(vinylidene fluoride) (PVDF) materials are described. Carbon-13 cross-polarization magic angle spinning NMR spectra were recorded using simultaneous high-power decoupling on both the proton and fluorine channels. Both 1H to 13C and 19F to 13C cross-polarization experiments were applied, giving identical results apart from intensity variations due to the cross-polarization efficiency. An attempt was made to characterize the polymorphism of PVDF by means of solid-state triple-resonance spectroscopy. Two principal signals, for the CF2 and the CH2 groups, were observed, for both the non-polar α-phase and the polar β-phase. There was a small difference (ca. 4 ppm) in the chemical shift positions for these distinct crystalline modifications. © 1997 by John Wiley & Sons, Ltd.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
