Abstract
Very fine fibrous ion exchangers having polyethylene as reinforcing constituent have been prepared by following processes.1) Impregnation of monomer mixture, stylene-divinylbenzene or vinylbenzilchloride-divinylbenzene, into very fine fiber of high density polyethylene.2) Polymerization the monomer mixture in the fiber under condition that the fiber is swollen by the adsorbed monomer mixture.3) Introduction of ion exchange groups.The fine fibrous ion exchangers have the following properties:1) The fundamental characters, such as ion exchange capacity and swelling property by water, of the fibrous ion exchangers obtained are very similar to those obtained by using polyvinylchloride fiber as a raw material.1)2) The fibrous ion exchanger obtained adheres mutually over 140°C.
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