Hydrogen atom abstraction from polypropylene and polystyrene by t-butoxy radical site of radical attack studied by spin trapping
✍ Scribed by E. Niki; N. Ohto; T. Kanauchi; Y. Kamiya
- Publisher
- Elsevier Science
- Year
- 1980
- Tongue
- English
- Weight
- 358 KB
- Volume
- 16
- Category
- Article
- ISSN
- 0014-3057
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✦ Synopsis
In order to elucidate the site of radical attack on polypropylene and polystyrene, the abstractions of hydrogen atoms by t-butoxy radicals and phenyl radicals have been studied by using a spin trapping technique. The r-butoxy radical abstracted tertiary hydrogen atoms selectively from polypropylene, polystyrene and model compounds. On the other hand, the tertiary hydrogens in polypropylene and its model compounds were less reactive towards the phenyl radical than the secondary hydrogens within the same molecule and the secondary hydrogens in polystyrene were abstracted predominantly by the phenyl radical. The conformational effects on the reactivities of various hydrogens in polypropylene and model compounds were found to be similar.