Benzaldehyde, 4,4′,4′′,4′′′-(1,3,6,8-pyrenetetrayl)tetrakis-, polymer with 4,4′-diamino[1,1′-biphenyl]-3,3′-diol

Benzaldehyde, 4,4′,4′′,4′′′-(1,3,6,8-pyrenetetrayl)tetrakis-, polymer with 4,4′-diamino[1,1′-biphenyl]-3,3′-diol