CATION-EXCHANGE POLYMER

PROBLEM TO BE SOLVED: To obtain a caticn-exchange polymer which is strongly acidic and excellent in stability, and has a new cation-exchange group different from conventional cation-exchange groups by forming one with a specified molecular structure. SOLUTION: This polymer has a cation-exchange grou...

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1. Verfasser:	SADA TOSHIKATSU
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To obtain a caticn-exchange polymer which is strongly acidic and excellent in stability, and has a new cation-exchange group different from conventional cation-exchange groups by forming one with a specified molecular structure. SOLUTION: This polymer has a cation-exchange group represented by formula I (wherein A is a group of formula II or III; R1 and R2 are each an alkyl; R3 is H or an alkyl; R4 is methylene or O; and (n) is 0 or 1) or formula IV (wherein R5 , R6 , R7 and R8 are each an alkyl; R9 and R10 are each methylene or O; and A and (n) are as defined above).