Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
602671 | Colloids and Surfaces B: Biointerfaces | 2007 | 8 Pages |
Abstract
This review summarized our experimental studies of ultrasonically induced birefringence on aqueous solution of rigid rod-like colloids and rod-like micelles from the view point of dynamics of particle orientation. For rigid rod-like colloids in dilute concentration, the orientational relaxation time was described in terms of the Debye–Einstein equation. This indicated that the ultrasonically induced birefringence could be one of useful tools for determining the size of particles of anisotropic shape. For rod-like micelles, the birefringence showed anomalous damping oscillation when the rod-like micelle was in an entangling state. The mechanism of damping oscillation was discussed using the results of the rheological measurements.
Keywords
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Colloid and Surface Chemistry
Authors
Tatsuro Matsuoka, Keiji Yasuda, Ken Yamamoto, Shinobu Koda, Hiroyasu Nomura,