Effect of vanadium(V) complexation reactions on the optical and electrical properties of poly(vinyl chloride-co-vinyl acetate- co-vinyl alcohol) ter-polymer

Hassa, A.K.

	Effect of vanadium(V) complexation reactions on the optical and electrical properties of poly(vinyl chloride-co-vinyl acetate- co-vinyl alcohol) ter-polymer
Al-Mustansiriyah Journal of Science
Article 1, Volume 27, Issue 1, 2016, Pages 9-14
Author
A.K. Hassa
Abstract
Thin films of a new type of 8- hydroxyl quinoline vanadium(V) organometallic random ter-polymer have been produced by spin coating onto silicon, microscopicslides and ITO-coated glass substrates. The new polymer is synthesized from the interaction of hydroxooxobis (8-quinolyloxo) vanadium (V) (OVQ¬2OH) with poly (vinyl chloride-co-vinyl acetate-co- vinyl chloride) (PVCAA), herewith called polymer 1, to produce a red-colored polymer (polymer 2). The latter is transformed to n-butyl ammonium salt organometallic polymer by interaction with n- butylamine at room temperature(polymer 3). The optical and electrical properties of thin films of the three polymers spun from solutions in dichloromethane have been characterized and compared using UV-vis and FT-IR spectrophotometry, spectroscopic ellipsometry, atomic force microscopy (AFM) and dc conductivity. Obtained result show that polymer 1 and 2 are characterized by smooth surfaces while polymer 3 has a more crystalline nature. DC conductivity of polymer 2 increased by one order of magnitude above that of polymer 1, whereas conductivity of polymer3 has increased by two order of magnitude. This increase in conductivity could be attributed to the coordination of vanadium(V) complex with the polymer chain, and the ionic salt formation with butyl amine in the case of polymer 3.

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