Polymer chain dimensions and the dependence of viscoelastic properties on concentration, molecular weight and solvent power
β Scribed by William W. Graessley
- Publisher
- Elsevier Science
- Year
- 1980
- Tongue
- English
- Weight
- 377 KB
- Volume
- 21
- Category
- Article
- ISSN
- 0032-3861
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π SIMILAR VOLUMES
An equation is derived to estimate the hydrodynamic volume occupied by a typical linear polymer molecule, knowing only the polymer molecular weight and concentration of polymer in the solution. This equation may be applied to solutions above a minimum polymer concentration. Accuracy of the equation
The behaviour of ultra-high molecular weight poly(butyl methacrylate) (/~w = 9.59 Γ 106-24.50 Γ 106) in dilute solution in methyl ethyl ketone, benzene, dioxane, and cyclohexanone, at 25c'C. has been investigated by viscometry. Mark Houwink relations have been established, and the unperturbed dimens