6533b7cffe1ef96bd125826e

RESEARCH PRODUCT

Pressure influences on the viscosity of polymer solutions

R. JendH. GeerissenBernhard A. WolfJ. R. Schmidt

subject

chemistry.chemical_classificationViscosityMaterials sciencechemistryTemperature dependence of liquid viscosityRelative viscosityIntrinsic viscosityInherent viscosityThermodynamicsViscosity indexPolymerReduced viscosity

description

Of all physico-chemical quantities characterizing the behavior of liquids, the viscosity coefficient η is normally most sensitive to pressure. Early measurements of η(p) date back almost 100 years [1] but they were carried out with very different objectives [2]. Currently, one is particularly interested in polymer solutions, for instance because of the additives to motor oils and of oil recovery. The present paper reports on measurements with polystyrenes of high molecular uniformity in eight different solvents. It confines itself to zero-shear viscosities and discusses the possibilities of discovering the influence of pressure via the molecular structure of the solvent and via its thermodynamic interactions with the polymer.

yearjournalcountryeditionlanguage
1982-01-01
https://doi.org/10.1007/978-3-662-12809-1_39