## Abstract Linear polystyrenes with dimethylamino end groups were prepared by anionic polymerization, using 3β(dimethylamino)propyllithium as initiator and high vacuum techniques. The amino group was transformed to a sulfozwitterionic moiety by reaction with 1,3βpropanesultone. The dilute solution
Non-newtonian behavior of associations of macromolecules in dilute solutions
β Scribed by Claude Wolff
- Publisher
- Elsevier Science
- Year
- 1982
- Tongue
- English
- Weight
- 621 KB
- Volume
- 17
- Category
- Article
- ISSN
- 0001-8686
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β¦ Synopsis
The shear-thickening of di'lute solutions of flexible macromolecules of high molecular weight is explained theoretically assuming the existence of one-to-one reversible.concentratian and shear rate dependent associations between the macromolecules. The theoretical curves obtained are in fairly good agreement with the experimental results.
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A rigid linear array of beads in a Newtonian fluid is used to model a rod-like macromolecule in a dilute solution. Following the work of Kotaka, an expression is obtained relating the intrinsic viscosity to the velocity gradient. Computed results are compared with the experimental results of Str6mbe
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