6533b82cfe1ef96bd128fe6c
RESEARCH PRODUCT
Die Bestimmung der Molekulargewichtsverteilung von nichtkristallisierenden Polymeren mit dem Elektronenmikroskop, 5. Bestimmung der Masse der Einzelmoleküle und Aufnahme der Molekulargewichtsverteilung
G. V. SchulzG. Koszterszitzsubject
chemistry.chemical_classificationchemistry.chemical_compoundchemistrylawPolymer chemistryMolar mass distributionMoleculePolymerPolystyreneElectron microscopeMethyl methacrylatelaw.inventiondescription
A method is described for the determination of the molecular weight distribution (MWD) of various polymers from electron microscopy pictures of their molecules. It is shown, that the number of molecules needed to construct the distribution is between 200 and 300. Furthermore, with macroscopic density of the polymer and the volume determined by electron microscopy, the correct mass of a single molecule is obtained. The method is demonstrated for samples of polystyrene and poly(methyl methacrylate) and the results are compared with those of GPC-measurements.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1977-04-01 | Die Makromolekulare Chemie |