Creep in macromolecular solutions according to rigid dumbbell kinetic theory
โ Scribed by Bird, R. B. ;Warner, H. R.
- Publisher
- Springer
- Year
- 1971
- Tongue
- English
- Weight
- 129 KB
- Volume
- 23
- Category
- Article
- ISSN
- 0003-6994
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โฆ Synopsis
The creep experiment is analyzed using the rigid-dumbbell suspension model. It is found that the equilibrium shear compliance Je is given by
where ~0 and 00 are the viscosity and primary normal stress functions at zero-shear rate, and Koo is the velocity gradient for large time. It is found that, to the lowest level of approximation, ~vv --~zz and rxx --rvv have the same sign during the creep experiment.
๐ SIMILAR VOLUMES
The intrinsic viscosity data of poly[2-methoxy-4,6-di(p,p '-isopropylidene diphenyloxy)-s-triazine] (PMIPT) solutions in various solvents are treated according to the theories of intrinsic viscosity of rigid-chain polymers, representing a polymer molecule as a worm-like necklace or a worm-like cylin