NONLINEAR RHEOLOGY OF POLYMER MELTS UNDER SHEAR-FLOW

Authors
SUBBOTIN A SEMENOV A MANIAS E HADZIIOANNOU G TENBRINKE G
Citation
A. Subbotin et al., NONLINEAR RHEOLOGY OF POLYMER MELTS UNDER SHEAR-FLOW, Macromolecules, 28(11), 1995, pp. 3898-3900
Citations number
17
Categorie Soggetti
Polymer Sciences
Journal title
Macromolecules → ACNP
ISSN journal
00249297
Volume
28
Issue
11
Year of publication
1995
Pages
3898 - 3900
Database
ISI
SICI code
0024-9297(1995)28:11<3898:NROPMU>2.0.ZU;2-U
Abstract
The nonlinear theology of an unentangled polymer melt under shear flow is considered theoretically. The finite chain extensibility is taken into account explicitly. The tangential stress and the first and the s econd normal-stress differences are calculated as a function of shear rate gamma. It is shown that in the shear thinning regime, the viscosi ty eta decreases as gamma(-23).