SEMICONDUCTING POLYMERS BASED ON CHARGE-TRANSFER COMPLEXES .3. COMPLEXING AND CHEMICAL STABILITY OF CHARGE-TRANSFER COMPLEXES IN SOLUTION

10-Methylphenothiazine and p-(methylthio)anisole were compared to polymers which contained these donor molecules on the side chains of N-acyl-substituted polyethylenimines. Charge-transfer absorption spectra were compared for these donors with various acceptors. Benesi-Hildebrand plots show that the formation of the polymer complexes have 3 to 50 times higher equilibrium constants than those of the corresponding model complexes. Extinction coefficients are higher for the model complexes than for the polymer complexes. Complex decomposition rates were determined based on measuring changes in the intensities of the charge-transfer absorption spectra. Dichlorodicyanoquinone complexes were unstable, while the other complexes were stable.