Theory of Polymer Fractionation

The result obtained by equating iix to using Eq. (XII-33) can be expressed very simply as 

It is sufficient for our purpose to accept the existence of a quantity a such that the partitioning of every component between the two phases is governed by according to Eq. (23) we need not under- 

Let V and F represent the volumes of the phases in equilibrium. The fraction Jx of constituent x remaining in the more dilute phase will be given by 

These simple relations suffice for demonstration of the essentials of a polymer fractionation.  

In the case of simple fractionation in which each fraction is obtained by a single precipitation, the distribution in the first fraction is given by that in the second by /i(2), that in the third 

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