Spinodal decomposition under non-iso-quench depth

Three factors are responsible for the structure formation during solvent evaporation the rate of evaporation, the polymer-polymer interaction parameter and the blend ratio. The faster the solvent evaporates, the smaller the periodic distance in bi-continuous structure. The lager the faster casting is required for the 

When the value is small and the molecular weight is high, the system fails to phase separate in a limited time of casting, resulting in a homogeneous blend [Inoue et al., 1985]. These systems were named the forced mixmres , to indicate that the single-phase system was achieved by fast solvent evaporation, while at equilibrium the polymers are immiscible [Kammer and Kummerloewe, 

When the forced mixtures are heated above their glass transition temperatures, they usually phase separate by spinodal decomposition. 

A forced mixture of PET with a liquid-crystalline copolyester (LCP) of ethylene terephthalate and 

In these cases, the phase separation had some different features, since immediately after phase separation, PPTA and PODZ behave as solids. A qualitative analysis of the percolation limits was attempted [Kammer et al., 1993]. 

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