Nonlinear viscoelasticity of wormlike micelles (and other reversibly breakable polymers)

Journal Article · Thu Jan 11 00:00:00 EST 1990 · Journal of Physical Chemistry; (USA)

DOI:https://doi.org/10.1021/j100364a063· OSTI ID:6948917

Cates, M E ^[1]

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1. Cavendish Laboratory, Cambridge (England)

A model, previously introduced to describe the linear dynamics of entangled, reversibly breakable polymers, is extended to describe nonlinear effects. This extension of the model requires that (1) the nonlinear effects of a flow enter solely through its influence on polymer diffusion (not through any direct effect on the reaction rates for chain scission and recombination processes) and (2) the stress is dominated by polymer entropy contributions. With these assumptions, the viscoelastic functions are predicted to closely resemble those of the Doi-Edwards/Marrucci theory for monodisperse unbreakable polymers. The status of each assumption is discussed, with reference to recent experiments on viscoelastic solutions of polymer-like surfactant micelles.

• OSTI ID: 6948917
• Journal Information: Journal of Physical Chemistry; (USA), Vol. 94:1; ISSN 0022-3654
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE
MICELLAR SYSTEMS
ELASTICITY
CALCULATION METHODS
MATHEMATICAL MODELS
POLYMERS
THEORETICAL DATA
VISCOSITY
DATA
INFORMATION
MECHANICAL PROPERTIES
NUMERICAL DATA
TENSILE PROPERTIES
360603* - Materials- Properties
990200 - Mathematics & Computers