Phenol formation during thermal breakdown of aromatic polysulphones
β Scribed by L.I. Danilina; V.I. Muromtsev; A.N. Pravednikov
- Book ID
- 118964823
- Publisher
- Elsevier Science
- Year
- 1975
- Weight
- 354 KB
- Volume
- 17
- Category
- Article
- ISSN
- 0032-3950
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π SIMILAR VOLUMES
Bisphenol A polysulphone (PSF) and polyethersulphone (PESF) were photodegraded homogeneously at room temperature in an inert and a normal atmosphere. The average molecular weights and the molecular weight distributions of degraded samples were measured by means of GPC to evaluate the quantum yields
The anodic formation of barrier oxide films on valve metals cau be carried on till the electrode potential has attained the "breakdown voltage" (Us), after which a sustained sparking appears The systematization of the available data on this phenomenon revealed that Us depends fundamentally on the n