/sup 1/H-/sup 13/C nuclear cross relaxation near ferroelectric diffuse phase transition of P(VDF/sub 73//TrFE/sub 27/)

The /sup 13/C NMR spectrum of drawn P(VDF/sub 73//TrFE/sub 27/) is measured in detail as a function of contact time using a CP/MAS NMR technique, and the observed transient magnetization oscillation of CH/sub 2/, CHF, and CF groups against the contact time near the Curie temperature is interpreted in terms of /sup 1/H-/sup 13/C cross-relaxation theory of spin diffusion mechanism in a heterogeneous system of both VDF and TrFE rich segmental phases.