Abstract
The reaction of vinamidinium salts withpara-substituted aromatic diamines gives rise to polymeric 2-aryl malonaldehyde dianils in good yields. Polymeric cyanines can be obtained from tetramethoxypropane and a pentamethine cyanine, respectively, and para-substituted aromatic diamines. The degree of polymerisation Pn (n=10–40) was estimated by measuring the intrinsic viscosity η. The polymers show high electrical powder conductivities (σ=0.03–50 S cm–1) after doping with iodine or FeCl3 .
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