Ion‐radical mechanism of the polymerization of 2,6‐dimethylphenol by oxidative coupling catalysed by CuCl<sub>2</sub>‐amine complex
書誌事項
- 公開日
- 1975-01
- 権利情報
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- http://onlinelibrary.wiley.com/termsAndConditions#vor
- DOI
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- 10.1002/macp.1975.021760111
- 公開者
- Wiley
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説明
<jats:title>Abstract</jats:title><jats:p>The preparation of poly[oxy‐(2,6‐dimethyl)‐1,4‐phenylene] (<jats:bold>2</jats:bold>) via polymerization of 2,6‐dimethylphenol (<jats:bold>1</jats:bold>) by oxidative coupling with CuCl<jats:sub>2</jats:sub>‐amine complexes is described. The reaction mechanism was studied by means of ESR, NMR spectroscopy, and conductivity measurements. It was established that the CC coupling products (dipheno‐quinones) are formed by recombination of phenoxyl radicals and that the very high selectivity of the CuCl<jats:sub>2</jats:sub>‐amine complex catalysts in the formation of <jats:bold>2</jats:bold> (CO coupling) is due to the cationic mechanism based on the consecutive reaction of the phenoxyl radicals with Cu(II) complexes. This consecutive reaction of the phenoxyl radicals with Cu(II) complexes is responsible for the non‐measurable level of polymeric radicals <jats:bold>5</jats:bold> by ESR, previously reported.</jats:p>
収録刊行物
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- Die Makromolekulare Chemie
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Die Makromolekulare Chemie 176 (1), 157-175, 1975-01
Wiley