Abstract

Purpose: The aim of this paper is to show results of optical measurement performed on poly –(1-(4-methylenephenoxy-1)phenylene-4-methylene-1.4-phenylnenitrylomethylene) (PPI2) polyazomethine thinfilms and to compare with poly - (1.4-phenylenemethylenenitrilo-1.4 phenylenenitrilomethylene) (PPI).Design/methodology/approach: Influence of oxygen atom in the polymer chain on optical properties ofpolyazomethine was investigated. Optical UV-VIS and FTIR absorption spectra of polyazomethine PPI2 withoxygen atom were recorded and X-ray patterns of these polymers were performed.Findings: The oxygen atom incorporated in ordered way into PPI2 chain breaks conjugation and cause increaseof energy gap in polymer.Research limitations/implications: The oxygen atom incorporated between phenylene rings of dialdehydechanges PPI chain into sequence of alternative three ring conjugated fragments and oxygen atoms.Practical implications: Addition of oxygen atom inside aldehyde fragment in polyazomethine chain influencesconformation of polymer. The prepared layers of polyazomethine with oxygen atom in the backbone are expectedto be more amorphous and more luminescent properties.Originality/value: Polyazomethine is very interesting material as it has nitrogen atom in the backbone, and isisoelectronic counterpart of polyparaphenylenevinylene (PPV). This paper shows that addition of oxygen atom intopolyazomethine chain influences its optical properties
(PDF) Optical properties of polyazomethine with oxygen atom in the backbon. Available from: https://www.researchgate.net/publication/38103953_Optical_properties_of_polyazomethine_with_oxygen_atom_in_the_backbon [accessed Oct 29 2024].

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