Mcs. Dionisio et al., DIELECTRIC STUDIES ON THE MISCIBILITY IN POLY(VINYL ACETATE) POLY(ETHYL METHACRYLATE) BLENDS/, Journal of applied polymer science, 60(6), 1996, pp. 903-909
The glass transition relaxations of different blends of poly(vinyl ace
tate) and poly(ethyl methacrylate) have been investigated by dielectri
c relaxation spectroscopy in the frequency range from 20 Hz to 1 MHz.
The obtained results suggest that the poly(vinyl acetate)-rich blends
show immiscibility between the two components, whereas the poly(ethyl
methacrylate)-rich blends show partial miscibility. The results obtain
ed by differential scanning calorimetry and the analysis of the Maxwel
l-Wagner-Sillars effect seem to confirm the dielectric relaxation resu
lts. (C) 1996 John Wiley & Sons, Inc.