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

摘要

A crosslinked (meth)acrylic acid copolymer having excellent stability to solvents and giving a collector coated therewith in which the coating surface undergoes substantially no cracking upon drying; and a secondary-cell electrode which employs the copolymer. The crosslinked (meth)acrylic acid copolymer is obtained by polymerizing a (meth)acrylic acid imino compound represented by the general formula (1): [Chemical formula 1] (1) (wherein R represents hydrogen or methyl) with a (meth)acrylic ester in the presence of a crosslinking agent and then subjecting the resultant polymer to nitrooxidation.