TRENDS IN WEAK BASE ANION EXCHANGERS RESINS

摘要

The definition and some characteristic concepts regarding ion exchangers are pointed out. A classification of organic ion exchangers, according to several criteria, with location of the weak base anion exchangers in this classification is proposed. Beginning with characteristic reactions, some peculiarities of weak base anion exchangers and continuing with classical methods of achievement of these ion exchangers is further presented. Finally, trends in the field of organic weak base anion exchangers are shown. They are with regard to various morphologies and different shapes of the matrix as well as special structures of the amine moieties. The applications for each class of weak base exchangers are briefly discussed.