Properties of extremely high molecular weight polystyrene in solution
✍ Scribed by V. Chrástová; D. Mikulásová; J. Lacok; P. Citovický
- Publisher
- Elsevier Science
- Year
- 1981
- Tongue
- English
- Weight
- 343 KB
- Volume
- 22
- Category
- Article
- ISSN
- 0032-3861
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The mechanical shear degradation of polydisperse polyisobutene and monodisperse polystyrene in oils of different viscosities in the concentration range of 0.1% to 1% was studied using a high-shear concentric cylinder viscometer under laminar and uniform well-defined shear field conditions. Molecular
Viscosities of solutions of polystyrene in toluene were measured for concentrations up to 400 kg m ~3 at 298 K. Polymers of molecular weights ranging from 8.7 x 103 to 2.4 x 106 were used. It is observed that viscosity of the polymer solution increases with increasing concentration and molecular wei