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Preparation of ion‐exchange celluloses. I. Anion exchange celluloses
Author(s) -
Khalil M. I.,
Wally A.,
Kantouch A.,
AboShosha M. H.
Publication year - 1989
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/app.1989.070380213
Subject(s) - potentiometric titration , diethylamine , ethylamine , glycidyl methacrylate , triethylamine , chemistry , ion exchange , titration , cellulose , copolymer , nuclear chemistry , ammonia , epoxide , polymer chemistry , ion , inorganic chemistry , polymer , organic chemistry , catalysis
Cellulose–poly(glycidyl methacrylate) graft copolymer (CPGMA) was treated with ammonia (AH), ethylamine (EA), diethylamine (DEA), and triethylamine (TEA). Factors affecting the reaction, such as reaction duration, temperature, liquor ratio, pH, and aminating agent/epoxide molar ratio were studied. A mechanism of the reaction was suggested. The anion exchange celluloses were characterized by studying its capacity, potentiometric titration, and durability to use. Potentiometric titration of the produced anion exchangers has been studied and pK b values were found to be 6.1, 7.6, and 8.9 for DEA–CPGMA, EA–CPGMA, and AH–CPGMA, respectively.