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Viscosity - Molecular Weight Relationship for Polyvinyl Chloride

Abstract

THE expression [η] = KMa, where [η] is the intrinsic viscosity, M, the molecular weight, and K, and a are constants for a given polymer-solvent system, is commonly used to relate [η] and the molecular weight of the polymer. Values of K and a for polyvinyl chloridesolvent systems often show considerable variations for the same solvent. Table 1 gives values obtained for cyclohexanone as solvent with the temperature, type of molecular weight and whether unfractionated polymers or fractions were used in the determination of K and a.

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MOORE, W., HUTCHINSON, R. Viscosity - Molecular Weight Relationship for Polyvinyl Chloride. Nature 200, 1095–1096 (1963). https://doi.org/10.1038/2001095a0

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