Abstract
The relationship between molecular weight and the flow birefringence, [n]/[ν], of a number of fractions of poly(chlorohexyl isocyanate) is studied. It was found experimentally that over a wide range of molecular weights the conformation of these polymer molecules varies, in the same solvent, from rod-like to a Gaussian coil. It is shown that the experimental dependence of flow birefringence on molecular weight can be used for quantitative determination of the equilibrium rigidity of the macromolecules.
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