6533b7d2fe1ef96bd125f3ec
RESEARCH PRODUCT
Laser light scattering and polydispersity of polymers
H. HackJ. RaczekG. Meyerhoffsubject
Materials sciencebusiness.industryScatteringGeneral EngineeringMultiangle light scatteringInelastic scatteringSmall-angle neutron scatteringMolecular physicsLight scatteringOpticsAnalytical light scatteringStatic light scatteringBiological small-angle scatteringbusinessdescription
The application of lasers to light scattering improves the potentials of elastic scattering, especially in the high molecular weight range and enables the technique of inelastic scattering to be used. For elastic light scattering an experimental arrangement and an evaluation method is described which allows, within appropriate molecular weight ranges, the determination of the ratio Mw/Mn from the experimental scattering function with an accuracy down to 0.02. The newer technique of inelastic light scattering yields the coefficient of translational diffusion D. Besides D, the friction coefficient f is also directly accessible. The basic equations are reported, as well as an application to mixtures of two nearly monodisperse polymers. Always a z-average is obtained.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1977-01-01 | Journal of Polymer Science: Polymer Symposia |