Poly ( p -phenylene-vinylene)
Structural formula | |||||||
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General | |||||||
Surname | Poly ( p -phenylene-vinylene) | ||||||
other names |
PPV |
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CAS number | 26009-24-5 | ||||||
Monomer | It is not made from identical monomers | ||||||
Molecular formula of the repeating unit | C 8 H 6 | ||||||
Molar mass of the repeating unit | 102.14 g mol −1 | ||||||
properties | |||||||
Physical state |
firmly |
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safety instructions | |||||||
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As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions . |
Poly ( p -phenylene-vinylene) (PPV) is a conductive polymer on which electroluminescence was discovered in 1990 . Since then, PPV has been used in the development of organic light-emitting diodes , photovoltaic cells , optically excited lasers , displays for mobile phones and large-area screens because of its high electrical conductivity with high colored luminosity . In 1968, PPV was synthesized and patented by RA Wessling . In 1990, Jeremy H. Burroughes discovered electroluminescence on PPV.
The transport of electrical charges through the polymer takes place between the polymer chains. For this reason, its photophysical and electrical properties are dependent on the distance between the chains, which can be adjusted to a certain extent.
Derivatives
In O-PPVs, the side groups are linked to the rest of the polymer via an oxygen atom. Work has recently been carried out on the synthesis of sulfur-containing S-PPVs, which are expected to provide better electrical charge transport and greater stability.
literature
- Walter Rieß, Markus Schwoerer: Light-emitting diodes made from polymers. , In: Spectrum of Science , October 1, 1995
Individual evidence
- ↑ This substance has either not yet been classified with regard to its hazardousness or a reliable and citable source has not yet been found.
- ^ RA Wessling, J. Pol. Sci. Symp., 72, 55 (1985).
- ^ RA Wessling, RG Zimmermann, US Patent 3, 401, (1968), 152.
- Jump up ↑ JH Burroughes, DDC Bradley, AR Brown, RN Marks, K. Mackay, RH Friend, PL Burn, AB Holmes, Nature , 347, (1990), 539.
- ↑ Stefan Forero: Inter- and intramolecular aggregate formation in poly (p-phenylene-vinylene): photophysical and electrical properties . University of Bayreuth, 2005.
- ↑ Florian Glöcklhofer, Martin Heeney, Miriam M. Unterlass, Johannes Fröhlich, Jonathan Prinz: Thioalkyl- and sulfone-substituted poly (p-phenylene vinylene) s . In: Polymer Chemistry . December 28, 2018, ISSN 1759-9962 , doi : 10.1039 / C8PY01717D ( rsc.org [accessed January 17, 2019]).
- ↑ Chemie.de: A promising type of polymer developed. New synthesis method for S-PPV polymers patented. Retrieved January 17, 2019 .