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5. Molar mass control
The relationships given in this section can be used to prepare a reaction mixture leading to a polymer with a given molar mass, and possibly to well-defined end groups. Obviously, unforeseen phenomena (secondary reactions, partial or total precipitation of the polymer) may lead to deviations from the values given by these relationships; however, they are valuable insofar as they enable an approximate composition of the reaction mixture to be determined and, consequently, limit the number of preliminary experiments.
5.1 General relationships and systems AA + BB or AB + AB
Consider a system made up of two types of monomer: molecules bearing f A groups A and molecules bearing f B ...
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Molar mass control
Molar distribution in linear polycondensates
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RheoPower (Software for detecting molecular weight distribution as a function of viscosity measurements. Modeling and simulation of distributions). TOMCOAT http://www.tomcoat.com
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