Effect of solvent character on polymer entanglements
β Scribed by K. S. Gandhi; Michael C. Williams
- Publisher
- John Wiley and Sons
- Year
- 1972
- Tongue
- English
- Weight
- 221 KB
- Volume
- 16
- Category
- Article
- ISSN
- 0021-8995
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π SIMILAR VOLUMES
## Synopsis T h e viscous forces acting on a DNA macromolecule in a fiber are calculated. T h e DNA polymer is modeled as a n infinite rod of elliptical cross section with a grooved surface. T h e viscous solvent is hydrodynamic water. Appropriate boundary conditions for determining the viscous fo
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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
Recent reports by Nakano and Minoura',\* have claimed that the mechanical degradation of high polymers in solution at low concentrations is enhanced if the polymer is dissolved in a thermodynamically "good" solvent. The minimum concentration used in their study (c = 0.04%) gave solutions