書誌事項
- タイトル別名
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- Analyses of Radical Behavior in TEMPO-Mediated Oxidation of Cotton Fabric under Neutral Conditions, Using Electron Spin Resonance
抄録
<p>Cotton fabric was oxidized with 2,2,6,6-tetramethylmpiperidine-1-oxyl radical (TEMPO) or 4- acetoamido-TEMPO (4-AcNH-TEMPO) and sodium hypochlorite (NaClO) as catalysts and sodium chlorite (NaClO2) as a primary oxidant in a phosphate buffer at pH 6.8. The reaction temperature was increased from room temperature to 80 ̊C for the initial 43 min and then maintained at 80 ̊C for ~120 min. Portions were taken from the reaction mixtures at various reaction times, and their radical concentrations owing to TEMPO or 4-AcNH-TEMPO were determined using an electron spin resonance apparatus. The concentrations of 4- AcNH-TEMPO and TEMPO during oxidation of cotton fabric with 4-AcNH-TEMPO/NaClO/NaClO2 and TEMPO/NaClO/NaClO2 systems, respectively, were determined to study oxidation mechanisms/processes. As a result, the relationships between radical concentration and reaction time during heating from room temperature to 80 ̊C and during a constant temperature at 80 ̊C were successfully obtained. The results provided fundamental information concerning oxidation mechanisms/processes of cotton fabric under the reaction conditions used in this study. Moreover, the changing patterns of carboxylate content and viscosityaverage degree of polymerization of the oxidized cotton fabrics were studied in terms of reaction times,temperatures, radical concentrations, and oxidation mechanism/processes.</p>
収録刊行物
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- Journal of Fiber Science and Technology
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Journal of Fiber Science and Technology 74 (3), 60-66, 2018
一般社団法人 繊維学会
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詳細情報 詳細情報について
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- CRID
- 1390001205763868544
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- NII論文ID
- 130006464308
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- ISSN
- 21897654
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可