Synthesis and Characterization of Linear, Branched and Hyperbranched Triphenylamine-Based Polyazomethines

Authors: Grigoras, Mircea¹; Stafie, Loredana²

Source: Designed Monomers & Polymers, Volume 12, Number 2, 2009 , pp. 177-196(20)

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Abstract:

Novel triphenylamine-based linear, hyperbranched and branched conjugated polyazomethines have been synthesized by free-catalyst solution polycondensation of 1,4-diaminobenzene with 4,4′-diformyl triphenylamine, 4,4′,4′′-triformyl triphenylamine and their mixture in different molar ratios. Linear polyazomethine has a good solubility in organic solvents while branched and hyperbranched polymers are partially soluble. A wholly soluble hyperbranched polyazomethine was obtained by end-capping of polymer at gelation point using a monofunctional aromatic amine, p-anisidine. Characterization of all polymers was made by ¹H-NMR, FT-IR and UV-Vis and photoluminescence spectroscopy and thermal methods. Electrochemical behavior of polymers was studied by cyclic voltammetry using thin films cast from THF solution on a platinum disc working electrode in acetonitrile solvent and tetrabutylammonium tetrafluoroborate as electrolyte.

Keywords: TRIPHENYLAMINE-BASED POLYAZOMETHINES; LINEAR POLYAZOMETHINES; BRANCHED POLYAZOMETHINES; HYPERBRANCHED POLYAZOMETHINES; IR; NMR; THERMAL CHARACTERIZATION; OPTICAL PROPERTIES; ELECTROCHEMICAL BEHAVIOR

Document Type: Research article

DOI: http://dx.doi.org/10.1163/156855509X412117

Affiliations: 1: Electroactive Polymers Department, 'P. Poni' Institute of Macromolecular Chemistry, 41A Gr. Ghica Voda Alley, 700487-Iasi, Romania;, Email: grigoras47@yahoo.com 2: Electroactive Polymers Department, 'P. Poni' Institute of Macromolecular Chemistry, 41A Gr. Ghica Voda Alley, 700487-Iasi, Romania

Publication date: 2009-03-01