Crystallization kinetics of polymer mixtures

A large number of studies concerned with the crystaUization kinetics of polymer-polymer mixtures have been reported. One reason for this abundance of information is a basic scientific interest coupled with the many ranuficafions that are inherent to such systems. There is also a pragmatic interest since physical and mechanical properties, as well as environmental features, can be altered and controlled by the appropriate mixing of polymeric components. Itis useful to foUow the same methodology used in discussing the equilibrium aspects of crystalline polymer-polymer mixtures (see Chapter 4, Volume 1) when analyzing their crystallization kinetics. 

It also has to be known whether only one, or both components can crystallize. If in fact both components are capable of crystallizing it has to be further determined whether they do so independently or if co-crystaUizafion occurs between the two species. Another situation that needs to be considered separately is whether the two components are chemically identical. This could involve differences in stereo, regio or geometric isomers, molecular architecture or chain lengths. Each of these categories of binary blends is important and wUl be discussed in the sections that follow. 

2 Components completely miscible in melt only one component 

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