Preparation of aromatic polyketones

Details Preparation of aromatic polyketones Preparation of aromatic polyketones

C - Chemistry, Metallurgy

08

G

402/4

C08G 61/00 (2006.01) C08G 61/12 (2006.01)

Patent

CA 1297221

ABSTRACT PREPARATION OF AROMATIC POLYKETONES Polyaryletherketones are synthesised by Friedel- Crafts chemistry using a catalytic quantity of a strong acid (e.g. trifluoromethanesulphonic acid) in a solvent of lower acidity preferably comprising a second acid of strength at least equal to chloroacetic acid. Suitable second acids can be recovered for reuse, and only a small (catalytic) amount of the expensive strong acid is required.

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