Studies on the gradient phase morphology of polymer blends caused by temperature gardient

The gradient phase morphology of polymer blends caused by temperature gradi ent during quiescent annealing process was studied. The influence of volume fraction of dispersed phase and interfacial tension on the gradient phase morphology was discussed, The coarsening behavior of dispersed phase under temperature gradient was computed by the touch-coalescence mechanism. The r esults show that the degree of gradient phase morphology increases with int erfacial tension and volume fraction of dispersed phase.