6533b861fe1ef96bd12c4c1f
RESEARCH PRODUCT
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Joachim KuglerClaus D. EisenbachE. W. FischerManfred Peuschersubject
Materials scienceMolar massEthylene oxideAnalytical chemistryOxideNeutron scatteringSmall-angle neutron scatteringRandom coilchemistry.chemical_compoundCrystallographychemistryDeuteriumPolymer chemistryRadius of gyrationdescription
The neutron scattering from mixtures of deuterated and undeuterated poly(ethylene oxide), (D-PEO, H-PEO), in the small angle and intermediate angle region has been measured in the melt. We found no indications of a molecular segregation. The value of molecular weight evaluated agreed with that obtained by other methods. For a sample with a molar mass of 120000 g/mol the radius of gyration 〈rw2〉1/2 was found to be 13,6 nm, which corresponds to a characteristic ratio of C = 6,9. The form factor of a single chain can be described by the Debye equation for a random coil with the same unperturbed dimensions. Our results are compared with rotational isomeric state calculations and measurements in solvents.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1983-11-01 | Die Makromolekulare Chemie |