A method for demineralizing water or an aqueous solution, which comprises contacting the water or the aqueous solution to be treated to a strongly basic anion exchanger made of a crosslinked polymer having a constituting unit of the following formula (I): ##STR1## wherein A is a C.sub.1-2 linear alkylene group, B is a C.sub.4-8 linear alkylene group, each of R1, R2 and R3 which may be the same or different, is a C.sub.1-4 alkyl group or a C.sub.2-4 alkanol group, X is a counter ion coordinated on the ammonium group, and the benzene ring D may have an alkyl group or a halogen atom as a substituent.
一种用于去除
水或
水溶液中矿物质的方法,包括将待处理的
水或
水溶液与由交联聚合物制成的强碱性阴离子交换剂接触,该聚合物具有以下式(I)的组成单元:##STR1## 其中A是C.sub.1-2线性烷基组,B是C.sub.4-8线性烷基组,每个R1、R2和R3(可能相同或不同)是C.sub.1-4烷基或C.sub.2-4烷醇基,X是配在
铵基上的计数离子,苯环D可以具有烷基或卤素原子作为取代基。