Thin films of insoluble copolymer derived from poly(phenylene-vinylene) obtained by thermal evaporation under vacuum

• Published in: Journal of applied polymer science 2003-09, Vol.89 (11), p.3091-3099
• Main Authors: Zaidi, B., Ayachi, S., Mabrouk, A., Fave, J. L., Molinie, P., Ghedira, M., Alimi, K.
• Format: Article
• Language: English
• Subjects: Applied sciences; Electrical, magnetic and optical properties; Exact sciences and technology; insoluble; IR spectroscopy; luminescence; Organic polymers; Physicochemistry of polymers; poly(phenylene-vinylene); Properties and characterization; X-ray photoelectron spectroscopy
• ISSN: 0021-8995; 1097-4628
• DOI: 10.1002/app.12497

A new copolymer, referred to as poly(phenylene‐vinylene) (PPV)‐ether, built as PPV a polymer with some (CHCH) links changed into (CH2 OCH2) ethylic‐ether links, is insoluble in common solvents. PPV‐ether films are deposited by the thermal evaporation technique. X‐ray photoelectron spectroscopy for chemical analysis measurements indicate that the surface contamination decrease in the case of vacuum‐evaporated PPV‐ether. The scanning electron micrographs indicate that the surface of these vacuum‐deposited PPV‐ether are uniform. By comparison to the reference powder, the modification of the properties of the evaporated PPV‐ether are related to the decrease of the chain length and surface contamination. The results of the photoluminescence measurements reveal a shifting of the luminescence to blue in the vacuum‐evaporated PPV‐ether. © 2003 Wiley Periodicals, Inc. J Appl Polym Sci 89: 3091–3099, 2003