ARYLIDENE POLYMERS .18. SYNTHESIS AND THERMAL-BEHAVIOR OF ORGANOMETALLIC ARYLIDENE POLYESTERS CONTAINING FERROCENE DERIVATIVES IN THE MAIN CHAIN

A new interesting category of organometallic polyesters based on diarylidenecycloalkanones containing ferrocene derivatives in the polymer main chain has been prepared by interfacial polycondensation of 1,1'-dichlorocarbonyl ferrocene or 1,1'-dichlorocarbonyl-4,4'-diiodo-ferrocene with 2,5-bis (p-hydroxybenzylidene) cyclopentanone, 2,5-divanillylidenecyclopentanone, 2,6-bis (p-hydroxybenzylidene) cyclohexanone, 2,6-divanillylidenecyclohexanone, and 2,7-bis (p-hydroxybenzylidene) cycloheptanone. The resulting polyesters were characterized by elemental analyses, infrared spectroscopy, solubility, and viscometry measurements. The thermal behavior of the synthesized polymers was evaluated by thermal gravimetric analysis and correlated with their structures. The crystallinity of all polymers were examined by x-ray diffraction analysis. Moreover, the electrical conductivity of a selected example of polymer was investigated above the temperature range (300-500 K) and showed that it followed an Arrhenius-type equation with activation energy 2.09 eV.