Table 3 shows that the dielectric constant of blend after vulcanization is more stable.
The added dicumyl peroxide undergoes cross-linking reaction in the rubber phase and the cross-links formed at the interface decreases the free volume.
The cross-linked structure will avoid increase in free volume resulting in stable dielectric properties.
The effect of vulcanization on the dielectric constant for the blend with 10% of chitosan is shown in Fig. 6.
The dielectric constant decreases by vulcanization and it is more stable than pure blend at lower frequencies.
The vulcanized NR90CS10 blend is more stable than MA compatibilized NR90CS10 and the vulcanized blend is frequency independent at lower frequencies.