Viscoelastic Properties of Concentrated Linear Polymer Solutions
نویسندگان
چکیده
منابع مشابه
Viscoelastic properties of polymer solutions.
In a concentrated polymer solution, the entanglement of long-chain molecules results in a transient network structure, to which may be attributed certain aspects of the viscoelastic behavior of such a system. A suitable mechanical model for representing this network as a first approximation is a retarded Maxwell element with one spring and two dashpots. Experimental measurements of mechanical p...
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Film coating solutions containing different grades of HPMC (E5, E15 and E50) with and without polyethylene glycol (with various molecular weights) were examined by an oscillatory method, using Haake CV 100 rheometer. Fundamental rheological parameters (?, G? and G² ) were measured over the frequency range from 0.04 to 2 Hz. The variation with frequency of the loss tangent (a ratio of viscous to...
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ژورنال
عنوان ژورنال: Journal of the Society of Materials Science, Japan
سال: 1971
ISSN: 1880-7488,0514-5163
DOI: 10.2472/jsms.20.564