Behavior of polymer solutions in the velocity field with parallel gradient. III. Molecular orientation in dilute solutions containing flexible chain macromolecules

✍ Scribed by Takserman-Krozer, Rachela

• Publisher: Wiley (John Wiley & Sons)
• Year: 1963
• Tongue: English
• Weight: 405 KB
• Volume: 1
• Category: Article
• ISSN: 0449-2951
• DOI: 10.1002/pol.1963.100010723

✦ Synopsis

Abstract

The orientation of flexible, coiled, chain macromolecules in the velocity field with parallel gradient has been analyzed on the basis of the subchain model. It has been found that the axial orientation factor in the steady state depends only on the velocity gradient q, diffusion constant D, and molecular dimensions. The internal viscosity of macromolecule has no influence upon the steady‐state orientation factor. The relation describing the time dependence of the orientation factor have also been derived.