Hydrodynamic crossover in two‐polymer mixtures from viscosity measurements
- 1 October 1983
- journal article
- research article
- Published by Wiley in Die Makromolekulare Chemie
- Vol. 184 (10) , 2153-2158
- https://doi.org/10.1002/macp.1983.021841019
Abstract
A very sharp crossover is observed in the variation of the reduced viscosity ηsp/c as a function of the concentration c for mixtures of 1:1 by weight mixtures of polystyrene and poly(methylmethacrylate) in benzene at 20°C and a 1:1 by weight mixture of poly(ethylene glycol) and polystyrene in benzene at 20°C. The crossover is attributed to the critical to the concentration of the two respective polymers in the solution and its sharpness is due to the incompatibility between the two different polymers.Keywords
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