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Preparation of ion exchangers from bagasse by crosslinking with epichlorohydrin‐NH 4 OH or epichlorohydrin‐imidazole
Author(s) -
Šimkovic Ivan,
Laszlo Joseph A.
Publication year - 1997
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/(sici)1097-4628(19970627)64:13<2561::aid-app9>3.0.co;2-b
Subject(s) - epichlorohydrin , imidazole , ion exchange , bagasse , chemistry , ion exchange resin , polymer chemistry , nuclear chemistry , ion , organic chemistry , pulp and paper industry , engineering
Sugar cane bagasse was crosslinked with epichlorohydrin in the presence of NH 4 OH or imidazole. The obtained water‐insoluble products were characterized in terms of yield, anion‐exchange capacity, packed volume, and dye‐binding properties. Yields were highest using a 3: 1 epichlorohydrin to NH 4 OH molar ratio, producing weak anion exchangers. The weak anon exchangers had low dye‐binding capacities compared to their total anion‐exchange capacities. A 2 : 1 epichlorohydrin‐to‐imidazole molar ratio proved best for making strong anion exchangers from bagasse. The strong anion exchangers had dye‐binding capacities comparable to their anion‐exchange capacities, indicating that they might be useful for removing anionic dyes from wastewater. © 1997 John Wiley & Sons, Inc. J Appl Polym Sci 64: 2561–2566, 1997