New ion exchangers, preparation, properties and application
Organic ion exchangers are used for many years in laboratory and industry. They consist of a network or matrix carrying functional groups or anchor groups which are responsible for the ion exchange properties. The network may be an artificial one obtained from monomers by polytnerisation or copolyrnerisation or by polycondensation. Products of this kind are called resins. On the other hand natural macromolecules like cellulose may be used as matrices.