Thermally stable sulfonic acid groups-containing crosslinked...

Details Thermally stable sulfonic acid groups-containing crosslinked... Thermally stable sulfonic acid groups-containing crosslinked...

C - Chemistry, Metallurgy

08

F

402/340

C08F 8/12 (2006.01)

Patent

CA 1249693

A B S T R A C T THERMALLY STABLE SULFONIC ACID GROUPS-CONTAINING CROSSLINKED RESINS Novel crosslinked resins having at least one aryl group carrying a group of general formula Image (I) can be prepared via the addition reaction of a crosslinked resin having at least one aryl group carrying a group of general formula Image (II) and an ester of an alkenesulfonic acid of general formula C(H)(R1) = C(H) - SO3R3 (III), wherein, a is 0 or 1, b is 1 or 2, d is 1 or 2, e is 0 or 1, R1 represents H or a C1-C4 alkyl group, R2 is a -CN or a carboxy- ester group, R3 is a hydrocarbyl group, M is a proton or another cation, and moreover that in general formula (I) b+d+e = 3, and in general formula (II) that b+e = 2 and if b is 2 each R2 is a -CN or a carboxyester group, followed by hydrolysis of the addition product into a functional group of general formula (I). Said resins are extremely stable at elevated temperatures in water or aqueous media and show a high catalytic activity.

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