Al. Kovarskii et al., APPLICATION OF THE SPIN-PROBE METHOD FOR THE STUDY OF 2-PHASE POLYMERSYSTEMS - POLY(VINYL CHLORIDE) POLYETHYLENE BLENDS, Vysokomolekularnye soedinenia. Seria A, 35(10), 1993, pp. 10001669-10001673
PVC/PE blends have been studied using spin probe ESR spectroscopy in a
wide range of compositions. Registration of the second derivatives of
ESR spectra allows the determination of correlation times of probe ro
tation in two-phase systems more accurately than does the registration
of the first derivatives. Modification of the PE phase with PVC resul
ts in the creation of interphase layers with a lower molecular mobilit
y. The potential of the method of assessment of local probe concentrat
ion for the analysis of the ratio of components in heterogeneous syste
ms was demonstrated.