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Article: Synthesis of hyperbranched polymers with rhenium(I) bis(stilbazoylimino) acephthalene complexes at the branching units

TitleSynthesis of hyperbranched polymers with rhenium(I) bis(stilbazoylimino) acephthalene complexes at the branching units
Authors
KeywordsHyperbranched polymers
Layer-by-layer deposition
Rhenium complex
Issue Date2008
PublisherSpringer New York LLC.
Citation
Journal Of Inorganic And Organometallic Polymers And Materials, 2008, v. 18 n. 1, p. 59-68 How to Cite?
AbstractTwo hyperbranched polymers that contains chlorotricarbonyl rhenium(I) bis(stilbazoylimino)acenaphthene complexes were synthesized. The AB 2 typed monomers are based on 3- or 4-stilbazoylimino groups that coordinated to the rhenium center as the bidentate ligands. Self-polymerization could be initiated by the addition of silver triflate that activated the rhenium center by removing the chloride ligand. The sizes of the polymers were studied by various methods including gel permeation chromatography and light scattering, and atomic force microscopy. Addition of electrolyte to the polymer solutions resulted in decrease in molecular size, but after a critical concentration (ca. 10 mM), the sizes increased due to the formation of aggregates. These polymers were fabricated into multilayer films by the layer-by-layer electrostatic self-assembly with another polyanion. The multilayer films could function as the active layer in photovoltaic cells. The open-circuit voltage, short circuit current, and fill factor of the best device were measured to be 0.62 V, 3.7 μA/cm 2, and 0.17, respectively. The power conversion efficiencies of the cells were in the order of 10 -4 %. The contribution of metal complex in the photosensitization process was confirmed by the plot of incident photon-to-electron conversion efficiency as the function of incident light wavelength. © 2007 Springer Science+Business Media, LLC.
Persistent Identifierhttp://hdl.handle.net/10722/69601
ISSN
2015 Impact Factor: 1.308
2015 SCImago Journal Rankings: 0.338
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorTse, CWen_HK
dc.contributor.authorCheng, KWen_HK
dc.contributor.authorChan, WKen_HK
dc.date.accessioned2010-09-06T06:15:09Z-
dc.date.available2010-09-06T06:15:09Z-
dc.date.issued2008en_HK
dc.identifier.citationJournal Of Inorganic And Organometallic Polymers And Materials, 2008, v. 18 n. 1, p. 59-68en_HK
dc.identifier.issn1574-1443en_HK
dc.identifier.urihttp://hdl.handle.net/10722/69601-
dc.description.abstractTwo hyperbranched polymers that contains chlorotricarbonyl rhenium(I) bis(stilbazoylimino)acenaphthene complexes were synthesized. The AB 2 typed monomers are based on 3- or 4-stilbazoylimino groups that coordinated to the rhenium center as the bidentate ligands. Self-polymerization could be initiated by the addition of silver triflate that activated the rhenium center by removing the chloride ligand. The sizes of the polymers were studied by various methods including gel permeation chromatography and light scattering, and atomic force microscopy. Addition of electrolyte to the polymer solutions resulted in decrease in molecular size, but after a critical concentration (ca. 10 mM), the sizes increased due to the formation of aggregates. These polymers were fabricated into multilayer films by the layer-by-layer electrostatic self-assembly with another polyanion. The multilayer films could function as the active layer in photovoltaic cells. The open-circuit voltage, short circuit current, and fill factor of the best device were measured to be 0.62 V, 3.7 μA/cm 2, and 0.17, respectively. The power conversion efficiencies of the cells were in the order of 10 -4 %. The contribution of metal complex in the photosensitization process was confirmed by the plot of incident photon-to-electron conversion efficiency as the function of incident light wavelength. © 2007 Springer Science+Business Media, LLC.en_HK
dc.languageengen_HK
dc.publisherSpringer New York LLC.en_HK
dc.relation.ispartofJournal of Inorganic and Organometallic Polymers and Materialsen_HK
dc.subjectHyperbranched polymersen_HK
dc.subjectLayer-by-layer depositionen_HK
dc.subjectRhenium complexen_HK
dc.titleSynthesis of hyperbranched polymers with rhenium(I) bis(stilbazoylimino) acephthalene complexes at the branching unitsen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1574-1443&volume=18&spage=59&epage=68&date=2007&atitle=Synthesis+of+Hyperbranched+Polymers+with+Rhenium(I)+Bis(Stilbazoylimino)Acephthalene+Complexes+at+the+Branching+Unitsen_HK
dc.identifier.emailChan, WK:waichan@hku.hken_HK
dc.identifier.authorityChan, WK=rp00667en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1007/s10904-007-9187-3en_HK
dc.identifier.scopuseid_2-s2.0-38449089321en_HK
dc.identifier.hkuros144193en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-38449089321&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume18en_HK
dc.identifier.issue1en_HK
dc.identifier.spage59en_HK
dc.identifier.epage68en_HK
dc.identifier.isiWOS:000252563800007-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridTse, CW=8264696700en_HK
dc.identifier.scopusauthoridCheng, KW=36439221300en_HK
dc.identifier.scopusauthoridChan, WK=13310083000en_HK

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