New Antagonism of Hindered Amine Light Stabilizers with Acidic Compounds Including Phenolic Antioxidants (Part 2) Formation Mechanism of Active Species of Peroxide Decomposition Reaction
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- Yamashita Hiroshi
- Dept. of Applied Chemistry, Faculty of Engineering, Kogakuin University
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- Kawaguchi Asei William
- Dept. of Applied Chemistry, Faculty of Engineering, Kogakuin University
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- Ohkatsu Yasukazu
- Dept. of Applied Chemistry, Faculty of Engineering, Kogakuin University
Bibliographic Information
- Other Title
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- ヒンダードアミン光安定剤とフェノール系酸化防止剤を含む酸性化合物との新拮抗作用(第2報)過酸化物分解反応の活性種の生成機構
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Abstract
The effect of acidic compound on the formation of active species in homolytic hydroperoxide decomposition by hindered amine light stabilizers (HALS) was studied. The hydroperoxide decomposition activity of HALS is an important to characteristics of HALS. HALS Ammonium salt, which is a fundamental compound involved in the antagonism between HALS and acidic compounds including phenolic antioxidants, was found to be a key compound for the formation of HALS nitrosonium salt, which was identified as the active species of hydroperoxide decomposition. HALS Nitrosonium salt was not formed from active species for polymer stabilization, such as nitroxide, alkoxide, or hydroxylamine of HALS, but from HALS salt. A formation mechanism of HALS nitrosonium salt is proposed. Furthermore, molecular aggregates formed between HALS and acid compounds are discussed to be important for HALS properties.<br>
Journal
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- Journal of the Japan Petroleum Institute
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Journal of the Japan Petroleum Institute 49 (6), 294-300, 2006
The Japan Petroleum Institute
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Details 詳細情報について
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- CRID
- 1390282680166540416
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- NII Article ID
- 10020360432
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- NII Book ID
- AA11590615
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- COI
- 1:CAS:528:DC%2BD28Xht1Sqt7bJ
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- ISSN
- 1349273X
- 13468804
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- NDL BIB ID
- 8557802
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed