Development of a New Preparation Technique of Bromobutyl Rubber : Bromination Conditions of Butyl Rubber in the Presence of NaClO and CH₂Cl₂
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- Wang Wei
- Research Center of the Ministry of Education for High Gravity Engineering and Technology, Beijing University of Chemical Technology State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology
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- Zou Hai-Kui
- Research Center of the Ministry of Education for High Gravity Engineering and Technology, Beijing University of Chemical Technology
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- Shao Lei
- Research Center of the Ministry of Education for High Gravity Engineering and Technology, Beijing University of Chemical Technology State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology
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- Chu Guang-Wen
- Research Center of the Ministry of Education for High Gravity Engineering and Technology, Beijing University of Chemical Technology
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- Xiang Yang
- Research Center of the Ministry of Education for High Gravity Engineering and Technology, Beijing University of Chemical Technology
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- Weng Zhan
- Research Center of the Ministry of Education for High Gravity Engineering and Technology, Beijing University of Chemical Technology
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- Chen Jian-Feng
- Research Center of the Ministry of Education for High Gravity Engineering and Technology, Beijing University of Chemical Technology State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology
書誌事項
- タイトル別名
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- Development of a New Preparation Technique of Bromobutyl Rubber: Bromination Conditions of Butyl Rubber in the Presence of NaClO and CH<sub>2</sub>Cl<sub>2</sub>
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抄録
Brominating butyl rubber (IIR) in the presence of oxidant, NaClO, and electrophilic solvent, CH2Cl2, is a promising preparation technique of bromobutyl rubber (BIIR), while there lacks comprehensive reports on this technique in the literature. In view of this, the present study paper systematically investigates the bromination conditions of IIR in a stirred tank reactor. The effects of process parameters on product quality in terms of the Br content (W) and the unsaturation degree (Ω) were obtained. Acceleration of the bromination and increase in W were realized by increasing the volume fraction of CH2Cl2(φCH<sub>2Cl2</sub>) in the solvent. With the optimum φCH<sub>2Cl2</sub>, 30%, the bromination reaction could be accomplished in 5 min. With the increase of NaClO dosage, W increased, which meant an increase in Br2 utilization. With the increase of Br2 dosage, W also increased, while the Br2 utilization decreased. Regarding W, a slight effect of IIR concentration, a significant effect of mixing intensity and no effect of temperature were found, respectively. Besides φCH<sub>2Cl2</sub>, the above bromination conditions exerted inverse and slight effects on Ω, comparing with their effects on W. These results have indicated methods to regulate the product quality of BIIR, and can be concluded as the development of a new preparation technique of BIIR.
収録刊行物
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- JOURNAL OF CHEMICAL ENGINEERING OF JAPAN
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JOURNAL OF CHEMICAL ENGINEERING OF JAPAN 47 (8), 698-703, 2014
公益社団法人 化学工学会
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詳細情報 詳細情報について
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- CRID
- 1390001204569891200
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- NII論文ID
- 130004677516
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- NII書誌ID
- AA00709658
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- ISSN
- 18811299
- 00219592
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- NDL書誌ID
- 026001068
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
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- 使用不可