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Synthesis and thermal stability of novel anion exchange resins with spacer chains

1997; Wiley; Volume: 64; Issue: 6 Linguagem: Inglês

10.1002/(sici)1097-4628(19970509)64

1097-4628

Masao Tomoi, Keita Yamaguchi, Risa Ando, Y. Kantake, Y. Aosaki, Hirohisa Kubota,

Radioactive element chemistry and processing

Journal of Applied Polymer ScienceVolume 64, Issue 6 p. 1161-1167 Synthesis and thermal stability of novel anion exchange resins with spacer chains M. Tomoi, Corresponding Author M. Tomoi Department of Synthetic Chemistry, Faculty of Engineering, Yokohama National University, Yokohama 240, JapanDepartment of Synthetic Chemistry, Faculty of Engineering, Yokohama National University, Yokohama 240, Japan===Search for more papers by this authorK. Yamaguchi, K. Yamaguchi Department of Synthetic Chemistry, Faculty of Engineering, Yokohama National University, Yokohama 240, JapanSearch for more papers by this authorR. Ando, R. Ando Department of Synthetic Chemistry, Faculty of Engineering, Yokohama National University, Yokohama 240, JapanSearch for more papers by this authorY. Kantake, Y. Kantake Department of Synthetic Chemistry, Faculty of Engineering, Yokohama National University, Yokohama 240, JapanSearch for more papers by this authorY. Aosaki, Y. Aosaki Mitsubishi Chemical Corporation, Yokohama Research Center, Yokohama 227, JapanSearch for more papers by this authorH. Kubota, H. Kubota Mitsubishi Chemical Corporation, Yokohama Research Center, Yokohama 227, JapanSearch for more papers by this author M. Tomoi, Corresponding Author M. Tomoi Department of Synthetic Chemistry, Faculty of Engineering, Yokohama National University, Yokohama 240, JapanDepartment of Synthetic Chemistry, Faculty of Engineering, Yokohama National University, Yokohama 240, Japan===Search for more papers by this authorK. Yamaguchi, K. Yamaguchi Department of Synthetic Chemistry, Faculty of Engineering, Yokohama National University, Yokohama 240, JapanSearch for more papers by this authorR. Ando, R. Ando Department of Synthetic Chemistry, Faculty of Engineering, Yokohama National University, Yokohama 240, JapanSearch for more papers by this authorY. Kantake, Y. Kantake Department of Synthetic Chemistry, Faculty of Engineering, Yokohama National University, Yokohama 240, JapanSearch for more papers by this authorY. Aosaki, Y. Aosaki Mitsubishi Chemical Corporation, Yokohama Research Center, Yokohama 227, JapanSearch for more papers by this authorH. Kubota, H. Kubota Mitsubishi Chemical Corporation, Yokohama Research Center, Yokohama 227, JapanSearch for more papers by this author First published: 07 December 1998 https://doi.org/10.1002/(SICI)1097-4628(19970509)64:6 3.0.CO;2-ZCitations: 108AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinkedInRedditWechat Abstract Spacer-modified anion exchange resins were prepared by suspension copolymerization of ω-bromoalkylstyrenes or ω-bromoalkyloxymethylstyrenes with 2–8 mol % of divinylbenzene, followed by quaternization with trimethylamine. The thermal stability of the spacer-modified anion exchangers of the OH form was examined by standing the resins in deionized water at 100–140°C for 30–90 days. The anion exchangers with alkylene chains such as butylene or heptylene groups between the benzene ring and the quaternary nitrogen exhibited higher thermal stability compared with commercial, strongly basic anion exchangers with benzylic ammonium groups. The thermal stability of the exchangers with butyleneoxymethylene or hexyleneoxymethylene spacers was also higher than that of the commercial exchangers. The exchanger with the propyleneoxymethylene spacer, however, had less stability than did the commercial ones. The decreased stability of this spacer-modified exchanger is due to the accelerated degradation of the spacer chain via Hofmann elimination. The excellent stability of the anion exchangers with alkylene or alkyleneoxymethylene spacers, except propyleneoxymethylene, results from the structure of the exchangers, where there are no reactive benzylic carbons, which are attached directly to the quaternary nitrogen. © 1997 John Wiley & Sons, Inc. J Appl Polym Sci 64: 1161–1167, 1997 Citing Literature Volume64, Issue69 May 1997Pages 1161-1167 RelatedInformation