ABSTRACT
The segmental relaxation in miscible rubber blends were followed using combined mechanical and dielectric spectroscopy (Alegria et al., 1994; Ngai and Roland, 1995). The more polar polybutadiene dominates the latter, but interestingly the mechanical loss peak was due almost entirely to the NR component. By combining stress and optical measurements, the component terminal dynamics in similar blends can be resolved (Arendt et al., 1994; Zawada et al., 1994).
