PRETRANSITIONAL ORIENTATIONAL ORDERING OF RIGID-ROD POLYMERS IN SHEAR-FLOW

Authors
WANG CH VUGMEISTER BE OUYANG HD
Citation
Ch. Wang et al., PRETRANSITIONAL ORIENTATIONAL ORDERING OF RIGID-ROD POLYMERS IN SHEAR-FLOW, Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics, 48(6), 1993, pp. 4455-4459
Citations number
12
Categorie Soggetti
Physycs, Mathematical","Phsycs, Fluid & Plasmas
Journal title
Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics → ACNP
ISSN journal
1063651X
Volume
48
Issue
6
Year of publication
1993
Pages
4455 - 4459
Database
ISI
SICI code
1063-651X(1993)48:6<4455:POOORP>2.0.ZU;2-H
Abstract
We present the results of our experimental and theoretical study of th e orientational ordering of rigid-rod-like polymers in the presence of shear flow. Shear-induced birefringence was measured to determine the dependence of the orientational order parameter S = (3 cos(2) theta O - 1 ) /2 on the shear rate for rod volume fractions below the critical value at which spontaneous ordering at zero shear appears. Experiment al results are discussed in terms of an approximate solution of the ro tational diffusion equation in the presence of shear how based on the construction of the effective interaction energy.