An expression for the rotational diffusivity of a rod in a polydisperse system of similar rods in the general case of anisotropic conditions is derived. This result is a prerequisite for extending the Doi-Edwards and Doi theories to the polydisperse case. As a simple application, the zero-shear viscosity in the isotropic phase is calculated explicitly.
The effect of polydispersity on rotational diffusivity and shear viscosity of rodlike polymers in concentrated solutions / Grizzuti, Nino; Marrucci, Giuseppe. - In: JOURNAL OF POLYMER SCIENCE. POLYMER LETTERS EDITION. - ISSN 0360-6384. - STAMPA. - 21:2(1983), pp. 83-86. [10.1002/pol.1983.130210202]
The effect of polydispersity on rotational diffusivity and shear viscosity of rodlike polymers in concentrated solutions
GRIZZUTI, NINO;MARRUCCI, GIUSEPPE
1983
Abstract
An expression for the rotational diffusivity of a rod in a polydisperse system of similar rods in the general case of anisotropic conditions is derived. This result is a prerequisite for extending the Doi-Edwards and Doi theories to the polydisperse case. As a simple application, the zero-shear viscosity in the isotropic phase is calculated explicitly.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
