N-aryl-substituted poly(meth)acrylimides

摘要

A polymer useful for preparing shaped articles comprises essentially repeat units of the formula I methyl, and R3 is C6-C14-aryl, which may be monosubstituted, disubstituted or trisubstituted by radicals selected from the group consisting of C1-C4-alkyl, C1-C4-alkoxy and halogen, and is obtainable by reacting a polymer based on C1-C20-alkyl esters of methacrylic acid or of acrylic acid or mixtures of such esters with an aromatic amine of the general formula II R3NH2 II in the presence of an amine having a pKb value