0000000000273912

AUTHOR

R. C. Oberthür

showing 2 related works from this author

Conformation of a chain polyelectrolyte in solution with low molecular weight salt: small angle neutron scattering measurements

1986

Small angle neutron scattering measurements have been carried out on the tetramethylammonium salt of the polystyrenesulfonic acid withDP w =310 and 1060 in water solution with tetramethylammonium chloride with ionic strength between 0.02 M and 1.0 M. The scattering curves in the scattering vector range 0.05 nm−1≤Q≤1.8nm−1 have been fitted using the form factor of a worm-like chain of finite thickness. The conformational parameters mean square radius of gyration, statistic chain element, mass per unit length and mean square radius of the cross-section have been determined experimentally and used for describing the conformation of the coils. By these molecular weights and ionic strengths, exc…

TetramethylammoniumPolymers and PlasticsScatteringIonic bondingThermodynamicsNeutron scatteringSmall-angle neutron scatteringchemistry.chemical_compoundCrystallographyColloid and Surface ChemistrychemistryIonic strengthTetramethylammonium chlorideMaterials ChemistryRadius of gyrationPhysical and Theoretical ChemistryColloid & Polymer Science
researchProduct

Shear induced deformation of polystyrene coils in dilute solution from small angle neutron scattering

1985

The deformation of the overall conformation of polystyrene,Mw=280000 g/ mole in dilute solution in a constant shear gradient has been investigated by small angle neutron scattering (SANS).

Quantitative Biology::BiomoleculesMaterials sciencePolymers and PlasticsTesting equipmentNeutron scatteringSmall-angle neutron scatteringCondensed Matter::Soft Condensed Matterchemistry.chemical_compoundCrystallographyColloid and Surface ChemistrychemistryShear (geology)Materials ChemistryPolystyrenePhysical and Theoretical ChemistryComposite materialCouette flowColloid & Polymer Science
researchProduct