0000000000082574

AUTHOR

Hubertus G. Ohm

showing 3 related works from this author

1985

Etude des phases isotrope, nematique et smectique de melanges de polymeres protones et en partie deuteries

chemistry.chemical_classificationCrystallographyDeuteriumChemistryLiquid crystallineLiquid crystalPolymerNeutron scatteringDie Makromolekulare Chemie, Rapid Communications
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1988

Light scattering, neutron scattering and viscosity measurements on a nematic and a smectic polymethacrylate demonstrate the presence of molecularly disperse coils in solution. For the nematic polymer, toluene is a theta solvent, the behaviour familiar from conventional polymers (unperturbed coil conformation) being exhibited at the theta point. The isotropic melts likewise contain unperturbed coils; in the case of the nematic polymers, however, the coils in the melt have a radius of gyration which is about 30% smaller than that in solution at the theta point. In the liquid-crystalline phase, the mean radii of gyration in both cases are identical to the corresponding parameters in the isotro…

Quantitative Biology::Biomoleculesbusiness.industryScatteringChemistryTheta solventMesophaseNeutron scatteringGyrationMolecular physicsCondensed Matter::Soft Condensed MatterOpticsLiquid crystalPolymer chemistrySide chainRadius of gyrationbusinessDie Makromolekulare Chemie
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1986

Etude de deux systemes differents avec de l'hydroxy-4 benzoate de phenyle comme unite mesogene. Les separateurs sont formes de 6 unites methylene et le squelette est de l'acide poly(meth)acrylique

Chain (algebraic topology)Liquid crystalChemistryPolymer chemistryOrder (group theory)Organic chemistryPendant groupDie Makromolekulare Chemie, Rapid Communications
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