| abstract |
(57) [Summary] [Object] To provide a new carboxyl group-containing acrylic monomer capable of improving the flexibility and other physical properties of a copolymer. ## STR1 ## Formula I (In the formula, R 1 is hydrogen or methyl, R 2 , R 3 and R 4 is independently an alkylene chain having 2 to 8 carbon atoms, R 5 is a hydrocarbon residue of an aliphatic, alicyclic or aromatic dicarbolic anhydride, n is 0 or an integer of 1 to 6, m is 1 to 6 Is an integer. ) Acrylic monomer having |