Spectroturbidimetric titration of polymer solutions as a method for analytical fractionation

Spectroturbidimetric titration of polymer solutions as a method for analytical fractionation 

Accumulating fractionation is one of the ways of polymer fractionation, where addition of a new portion of the precipitant is followed by determination of the total amount of the precipitate without removal of the precipitated fractions (Battista, 1967). 

As a matter of fact, the degree of phase conversion is determined at different stages of fractionation. 

the ideas of the method are simple and attractive, but their realization is not as simple as that. 

Application of TT to evaluate. MWD means to correctly solve two reverse problems. The first, optical problem consists in calculating a precipitation curve x - x( j) from the meausiired properties of scattered light the second, thermodynamic problem must provide a means of converting this curve x - 2(7) into the corresponding. VfWD function (7 is the volume fraction of precipitant in the system). 

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