Theory on Phase Separation Dynamics and Morphology Evolution

1 Theory on Phase Separation Dynamics and Morphology Evolution 

To elucidate the spatiotemporal emergence of crystalline structure and liquid-hquid phase separation in these polyolefin blends, we employ the time dependent Ginzburg-Landau (TDGL) equations pertaining to the conserved concentration order parameter and the nonconserved crystal order parameter. The spatiotemporal evolution of the nonconserved order parameter i/f, known as TDGL model-A equation (31,32), may be expressed as 

The functional derivative of the free energy with respect to individual order 

Inserting Equations 16.16 and 16.17 into Equations 16.12 and 16.13, respectively, and subsequently nondimensionalizing them, the following equations of motion can be deducted. 

2 Dynamics of Crystal Growth in a Phase Separating System iPP/EPDM Blends 

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