6533b829fe1ef96bd1289721
RESEARCH PRODUCT
false
Helga Krämer‐lucasBernhard A. WolfHeiko Schencksubject
chemistry.chemical_classificationChromatographyChemistryConcentration effectThermodynamicsPolymerPure shearShear ratechemistry.chemical_compoundShear (geology)Polymer chemistryShear stressPolystyreneShear flowdescription
An apparatus for turbidimetric measurements of demixing temperatures under shear flow is presented, and the results of experiments with trans-decahydronaphthalene/polystyrene (TD/PS) solutions, investigating molecular weights ranging from 100 kg/mol to 1770 kg/mol, are compared with viscometric data. It is found that the sign and magnitude of shear effects depend on molecular weight (Mw), polymer concentration (c2), and shear rate (). For the first time, it was possible to study a solution which exhibits shear dissolution at low shear rates but shear demixing at high shear rates.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1988-07-01 | Die Makromolekulare Chemie |