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Influence of polymerization temperature on molecular weight, photoluminescence, and electroluminescence for a phenyl-substituted poly(p-phenylenevinylene)
Chalmers Univ Technol, Dept Polymer Technol, SE-41296 Gothenburg, Sweden Chalmers Univ Technol, Dept Organ Chem, SE-41296 Gothenburg, Sweden Linkoping Univ, Dept Phys IFM, SE-58183 Linkoping, Sweden UNIAX Corp, Goleta, CA 93117 USA.
Chalmers Univ Technol, Dept Polymer Technol, SE-41296 Gothenburg, Sweden Chalmers Univ Technol, Dept Organ Chem, SE-41296 Gothenburg, Sweden Linkoping Univ, Dept Phys IFM, SE-58183 Linkoping, Sweden UNIAX Corp, Goleta, CA 93117 USA.
Chalmers Univ Technol, Dept Polymer Technol, SE-41296 Gothenburg, Sweden Chalmers Univ Technol, Dept Organ Chem, SE-41296 Gothenburg, Sweden Linkoping Univ, Dept Phys IFM, SE-58183 Linkoping, Sweden UNIAX Corp, Goleta, CA 93117 USA.
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2001 (English)In: Macromolecules, ISSN 0024-9297, E-ISSN 1520-5835, Vol. 34, no 11, 3716-3719 p.Article in journal (Refereed) Published
Abstract [en]

We present the synthesis and characterization of poly(2-(2",5'-bis(2"-ethylhexyloxy)phenyl)-1,4-phenylenevinylene) (BEHP-PPV) polymerized at different temperatures. The photoluminescence efficiencies in the solid state of BEHP-PPV obtained at 144 and 0 degreesC are 28% and 60%, respectively. H-1 NMR measurements showed a lower concentration of structural defects for BEHP-PPV obtained at lower temperatures, which can explain the increased photoluminescence efficiencies for these polymers. Polymerization temperatures below 0 degreesC decrease the molecular weight without changing the photoluminescence efficiency to any large extent. The electroluminescence efficiencies follow the trend in the photoluminescence efficiencies.

Place, publisher, year, edition, pages
2001. Vol. 34, no 11, 3716-3719 p.
National Category
Engineering and Technology
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URN: urn:nbn:se:liu:diva-49251OAI: oai:DiVA.org:liu-49251DiVA: diva2:270147
Available from: 2009-10-11 Created: 2009-10-11 Last updated: 2017-12-12

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Inganäs, Olle

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