| abstract |
A diaminobenzene derivative of the formula (I): <IMAGE> (I) wherein each of P and Q which may be the same or different from each other, is a single bond, or a bivalent organic group selected from the group consisting of -O-, -COO- and -CONH-, R1 is a C2-22 straight chain alkylene group, and R2 is a cyclic group selected from the group consisting of an aromatic ring, an aliphatic ring, a heterocyclic ring and substituted forms of such rings. |