Mechanical degradation of polystyrene in solution
โ Scribed by D.E. Moore; A.G. Parts
- Publisher
- Elsevier Science
- Year
- 1968
- Tongue
- English
- Weight
- 176 KB
- Volume
- 9
- Category
- Article
- ISSN
- 0032-3861
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๐ SIMILAR VOLUMES
The ESR spectra obtained from mechanica!ly degraded polystyrene have been ascribed to specific end-and chain-radicals. Studies of a-deuteropolystyrene indicate that, at low temperatures, the end-radicals predominate but, as the temperature is raised, these convert to the chain-type.
The molecular weight distribution functions of polystyrene degraded by shear stress in isopropylphenyl phosphate solution were compared with the calculated ones, obtained by assuming that up to a certain distance from each chain end the probability of bond scission is zero. T w o phenomenological mo
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