| abstract |
Provided is a binder for a magnetic recording medium made of a vinyl polymer, which can produce a magnetic recording medium having both excellent electromagnetic conversion characteristics and running durability. A binder for a magnetic recording medium, which is a vinyl copolymer containing a structural unit represented by the general formula [1]. [In the general formula [1], R 1 represents a hydrogen atom, a halogen atom or a methyl group, L 1 represents a single bond or a divalent linking group, Y represents an alicyclic cyclic group having 8 to 50 carbon atoms. The following hydrocarbon groups or hydroxyl groups are represented. ] [Selection figure] None |