UV-induced electrical and optical changes in PVC blends

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buir.contributor.authorSüzer, Şefik
dc.citation.epage192en_US
dc.citation.issueNumber1en_US
dc.citation.spage185en_US
dc.citation.volumeNumber132en_US
dc.contributor.authorSüzer, Şefiken_US
dc.contributor.authorBirer, O.en_US
dc.contributor.authorSevil, A. U.en_US
dc.contributor.authorGuven, O.en_US
dc.date.accessioned2016-02-08T11:57:45Z
dc.date.available2016-02-08T11:57:45Z
dc.date.issued2001en_US
dc.departmentDepartment of Chemistryen_US
dc.description.abstract2-Chloro-polyaniline (2-Cl-PANI) in its non-conducting (emeraldine base, EB) form, prepared by a chemical route, was dissolved together with poly-(vinylchloride) (PVC) in THF for casting into thin (10-50 μm) films. Upon exposure to UV radiation, the electrical conductivity of these films increased by more than 4 orders of magnitude (from 10-6 to 10-2 S/cm). This is attributed to the dehydrochlorination of PVC by exposure to energetic photons and subsequent doping of 2-Cl-PANI (i.e. conversion to emeraldine salt, ES) by in situ created HCl. The doped films could be returned to their undoped form by exposure to NH3 vapours. The UV-induced doping/NH3 undoping cycles could be repeated several times. Various spectroscopic techniques were employed to follow the changes in the films upon exposure to UV radiation. The same photo-dehydrochlorination process has also been utilized for optical and/or lithographic purposes by preparing PVC blends containing methyl violet, and acid-base indicator dye. The photo-dehydrochlorination can be effectively sensitized by incorporating hydroquinone into the PVC blends containing methyl violet.en_US
dc.description.provenanceMade available in DSpace on 2016-02-08T11:57:45Z (GMT). No. of bitstreams: 1 bilkent-research-paper.pdf: 70227 bytes, checksum: 26e812c6f5156f83f0e77b261a471b5a (MD5) Previous issue date: 2001en
dc.identifier.doi10.1007/s007060170158en_US
dc.identifier.issn0026-9247
dc.identifier.urihttp://hdl.handle.net/11693/27610
dc.language.isoEnglishen_US
dc.publisherSpringeren_US
dc.relation.isversionofhttp://dx.doi.org/10.1007/s007060170158en_US
dc.source.titleMonatshefte fur Chemieen_US
dc.subject2 - chloro - polyanilineen_US
dc.subjectDehydrochlorination of PVCen_US
dc.subjectOptical litographyen_US
dc.subjectPhotochemical sensitizationen_US
dc.subjectPhotochemistryen_US
dc.titleUV-induced electrical and optical changes in PVC blendsen_US
dc.typeArticleen_US

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