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Determination of molecular weight of the polymer by measuring the intrinsic viscosity. P3010601

You can get the concept of:
The viscosity of liquids, capillary viscometer Oswald Equation Poiseuilles's, Macromolecules.

Principle:
The viscosity of the liquid is determined by the strength of intermolecular forces of attraction. In solutions, the viscosity of the solvent can significantly change depending on the type and concentration of impurities. Because of their size, macromolecules have a very significant influence on the viscosity of the solvent. These values can be used to assess the molecular weight of macromolecules. Using a thermostatic capillary (viscometer), measured the viscosity of solutions of polystyrene in toluene on a range of five concentrations of polymer, and the estimated molecular weight.