Nucleation disperse-phase volume

Of particular interest is the case of a heterogeneous mixture with small volume content of the disperse phase W 1. In this case we can assume that the disperse phase exerts a weak influence on the continuous phase. Then fields of velocity, pressure, temperature and other parameters of the continuous phase could be determined by using one-velodty model, and then, for given distributions of parameters, one can determine the behavior of disperse phase. If the disperse phase represents a discrete system of inclusions (solid particles, drops, bubbles, macromolecules), it can be characterized by a distribution n V, t, P) of inclusions over volumes V at a point of space P. Inclusions can exchange mass (due to evaporation, condensation, fusion etc.) with the continuous phase, and also interact between themselves, - they can collide, coagulate, coalesce, break, form the inclusions of various size and shape. In addition, a phase can nucleate in conditions of mixture super-saturation and then increase in size due to a phase transition. The... 

For immiscible blends with crystaUizable matrix and amorphous dispersed phase, the crystal growth and the final morphology can be significantly influenced by the noncrystallizable component, with large changes in the primary nucleation density (number of nuclei per unit volume of crystallisable polymer), as well as in the size, shape, size distribution, texture, and crystallinity degree of the spherulitic superstructures. 

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