New Polymer Synthesis VI: Synthesis,Characterization and Morphology of New Polyoxaloylesters Derived from Diarylidenecycloalkanones

Abstract

New polyoxaloylesters have been synthesized via interfacial polycondensation of oxaloyl chloride with 2,5-bis(p-hydroxybenzylidene)cyclopentanone I, 2,5-divanillylidenecyclopentanone II, 2,6-bis(p-hydroxybenzylidene)cyclohexanone III, 2,6-divanillylidenecyclohexanone IV, and 2,7-bis(p-hydroxybenzylidene)cycloheptanone V at ambient temperature. These polyoxaloylesters were characterized by elemental analysis, IR spectra, ¹H NMR, solubility measurements, viscometry, DSC and thermogravimetric analyses. The crystallinity of the polymers was examined by x-ray analysis. The morphology of a high-performance polyoxaloylester, namely poly[oxyoxaloyloxy-p-phenylenemethylidyne (2-oxo-1,3-cyclohexanediylidene)methylidyne-p-phenylene], has been investigated by scanning electron microscopy. Electrical conductivity is in the range 10⁻¹¹ -10⁻¹³Ω⁻¹ cm⁻¹.

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