TITLE

Structure and optical anisotropies of critical polymer solutions in electric fields

AUTHOR(S)
Wirtz, Denis; Werner, Douglas E.; Fuller, Gerald G.
PUB. DATE
July 1994
SOURCE
Journal of Chemical Physics;7/15/1994, Vol. 101 Issue 2, p1679
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We present simultaneous measurements of both the small angle light scattering (SALS) structure factor and the dichroism for near-critical polymer solutions in electric fields. The theory of flow birefringence and dichroism proposed by Onuki and Doi is extended to the electric field case. This theory relates the electric-field-induced form dichroism to the second moment of the structure factor. Excellent agreement is observed between the form dichroism calculated from measured scattering intensities and the dichroism measured by optical polarimetry. In addition, a possible mechanism of dipolar coupling between the large critical concentration fluctuations and the electric field is proposed. Similar simultaneous SALS and birefringence measurements confirm this model of dipolar interaction.
ACCESSION #
7639892

 

Related Articles

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics