ISSN:
0323-7648
Keywords:
Chemistry
;
Polymer and Materials Science
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
,
Physics
Notes:
The previous theory of the global motion dynamics of stiff-chain polymers in multicomponent systems has been modified by a refined treatment of the jamming effect on the longitudinal diffusion of polymer chains along their end-to-end axis to derive a new equation for zero-shear viscosity, which depends on the longitudinal diffusion coefficients through the lifetimes of entanglements between similar as well as dissimilar polymers. Along with this theoretical study, experimental data forzero-shearviscosity of quasi-ternary solutions containing two stiff-chain polymers with different lengths were obtained. They were well described by the viscosity equation obtained, with only the similarity ratio(s) inherent to the respective polymer-solvent system(s) as adjustable parameter(s).
Additional Material:
7 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/actp.1995.010460607
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