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Journal of Nanomaterials
Volume 2013 (2013), Article ID 160464, 5 pages
Research Article

Effect of a Polymeric Protective Coating on Optical and Electrical Properties of Poly(p-phenylene vinylene) Derivatives

1Instituto de Física de São Carlos (IFSC), USP, CP 369, CEP 13566-590 São Carlos, SP, Brazil
2Faculdade de Ciência e Tecnologia (FCT), Unesp Presidente Prudente, CP 467, CEP 19060-900 Presidente Prudente, SP, Brazil
3Departamento de Engenharia de Materiais, Escola de Engenharia de São Carlos (EESC), USP, CP 359, CEP 13566-590 São Carlos, SP, Brazil

Received 14 August 2013; Revised 26 September 2013; Accepted 29 September 2013

Academic Editor: Jiamin Wu

Copyright © 2013 V. C. Gonçalves et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


The resistance to photodegradation of poly[(2-methoxy-5-n-hexyloxy)-p-phenylene vinylene] (OC1OC6-PPV) films was significantly enhanced by the use of poly(vinyl alcohol) 99% hydrolyzed as protective coating. The deposition of poly(vinyl alcohol) onto OC1OC6-PPV films did not affect the absorption and the emission spectra of the luminescent polymer. The protected film showed 5% drop on the absorbance at 500 nm after 270 hours of light exposure while the unprotected film completely degraded in the same conditions. The conductivity of the protected film remained stable (around  S/m) while the value for the unprotected one dropped around two orders of magnitude after 100 hours of light exposure.