Photoelectric properties of poly(arylene ether nitriles)-copper phthalocyanine conjugates complex via in situ polymerization

Poly(arylene ether nitriles)-Copper phthalocyanine conjugates complex (PEN-CuPc) was prepared via in situ polymerization from poly(arylene ether nitriles) containing pendant phthalonitriles (PEN-CN) and excessive 4-nitrophthalonitrile. The PEN-CN was obtained by post-amidation reaction of acid-contained poly(arylene ether nitriles) (PEN-COOH) and 4-(4-aminophenoxy)phthalonitrile. PEN-CuPc has good solubility in some polar aprotic solvents at room temperature. The results of DSC and TGA measurements indicated that PEN-CuPc has high glass transition temperature of 225 degrees C and excellent thermal stability with 10% weight loss at 446 degrees C. SEM image showed CuPc are well dispersed into PEN resins. The optical performance of PEN-CuPc was measured by ultraviolet-visible absorption and fluorescence spectroscopy in dimethylacety-lamide solution. The results showed PEN-CuPc has optical absorption in the visible region and exhibits blue photoluminescence. Furthermore, compared with PEN-COON, the dielectric constant of PEN-CuPc increased from 3.98 to 4.77 and the dielectric loss of PEN-CuPc decreased from 0.0180 to 0.0139 at 1 kHz. (C) 2011 Elsevier B.V. All rights reserved.