CROSSLINKED (METH)ACRYLIC ACID COPOLYMER AND SECONDARY-CELL ELECTRODE EMPLOYING THE SAME

摘要

It is an object of the present invention to provide a crosslinked (meth)acrylic acid-type copolymer excellent in stability to a solvent, which causes substantially no crack due to drying when applied onto the surface of a current collector, and a secondary-cell electrode using the copolymer. The present invention relates to a crosslinked (meth)acrylic acid-type copolymer obtained by the steps of: polymerization of a (meth)acrylic acid imino compound represented by the general formula (1):
(in the formula (1), R represents a hydrogen atom or a methyl group) and a (meth)acrylic acid ester in the presence of a crosslinking agent, and nitroxidation.