6533b824fe1ef96bd1280839

RESEARCH PRODUCT

Pressure dependence of the demixing of polymer solutions determined by viscometry

H. GeerissenBernhard A. Wolf

subject

Materials sciencePolymers and PlasticsCyclohexaneViscometerThermodynamicsMiscibilityHildebrand solubility parameterchemistry.chemical_compoundColloid and Surface ChemistrychemistryPhase (matter)Polymer chemistryMaterials ChemistryPolystyrenePhysical and Theoretical ChemistryCyclopentaneBar (unit)

description

From the break-down in the viscosity of a polymer solution, associated with the entrance into the two phase region, the pressure dependence of the demixing temperatures of solutions of polystyrene (M = 600.000) in cyclohexane, cyclopentane, diethylmalonate and 1-phenyldecane was measured up to 1000 bar. The application of pressure increases the solubility of polystyrene in cyclopentane and diethylmalonate, but decreases that in 1-phenyldecane; in the case of cyclohexane, a pressure of optimum miscibility is observed at ca. 120 bar.

yearjournalcountryeditionlanguage
1981-12-01Colloid and Polymer Science
https://doi.org/10.1007/bf01525017