Active species in hydroperoxide decomposition by hindered amine light stabilizers and its reactivity with phenol
✍ Scribed by Hiroshi Yamashita; Katsunori Banno; Yasukazu Ohkatsu
- Publisher
- John Wiley and Sons
- Year
- 2006
- Tongue
- English
- Weight
- 336 KB
- Volume
- 102
- Category
- Article
- ISSN
- 0021-8995
No coin nor oath required. For personal study only.
✦ Synopsis
Abstract
Hydroperoxide decomposition by hindered amine light stabilizers (HALSs) is an important process producing active HALS derivatives and has been studied energetically. The decisive active species of the decomposition, however, has not been proposed yet. In this article, HALS nitrosonium that forms in the decomposition of a hydroperoxide by HALSs and a ring‐opening product of the nitrosonium, a nitroso compound, are proposed as active species for hydroperoxide decomposition. Furthermore, the reactivity of the nitrosonium with phenols is discussed. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 102: 1310–1317, 2006