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Article: Synthesis and properties of polyamides and polyesters on the basis of 2,2′-bipyridine-5,5′-dicarboxylic acid and the corresponding polymer-ruthenium complexes

TitleSynthesis and properties of polyamides and polyesters on the basis of 2,2′-bipyridine-5,5′-dicarboxylic acid and the corresponding polymer-ruthenium complexes
Authors
Issue Date2000
PublisherAmerican Chemical Society. The Journal's web site is located at http://pubs.acs.org/macromolecules
Citation
Macromolecules, 2000, v. 33 n. 9, p. 3259-3273 How to Cite?
AbstractTwo series of polyamides and polyesters derived from 2,2′-bipyridine-5,5′-dicarboxylic acid have been synthesized. Different types of aliphatic and aromatic diamine and diol monomers with different structure were polymerized with the diacid or diacid chloride by using different polymerization methods. Most of these polymers exhibited modest thermal stabilities with decomposition temperatures in the range 320-500 °C, depending on the structure of the polymer main chain. It was found that some polyamides with a rigid main chain formed a lyotropic mesophase when dissolved in concentrated sulfuric acid or HMPA-4% LiCl solvent systems. For those polyamides and polyesters with a more flexible main chain, a thermotropic liquid crystal phase was observed. If a long and flexible pendant chain was attached to the polyesters, side chain melting was observed before the onset of the crystalline-nematic transition. The 2,2′-bipyridyl moieties were able to form a complex with ruthenium. These polymer-ruthenium complexes were either synthesized by metalation of the polymers or synthesized directly from the corresponding ruthenium-containing monomer. After the formation of ruthenium complexes, they were able to enhance the photosensitivity and charge carrier mobility of the polymers. The ruthenium-containing polymers also emit red light at ca. 700 nm owing to the emission from the metal-ligand charge-transfer excited states. Some polymers with good film forming properties were fabricated into simple single-layer light-emitting devices, and red light emission was observed when the devices were subjected to forward bias.
Persistent Identifierhttp://hdl.handle.net/10722/167638
ISSN
2015 Impact Factor: 5.554
2015 SCImago Journal Rankings: 2.497
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorYu, SCen_US
dc.contributor.authorHou, Sen_US
dc.contributor.authorChan, WKen_US
dc.date.accessioned2012-10-08T03:09:19Z-
dc.date.available2012-10-08T03:09:19Z-
dc.date.issued2000en_US
dc.identifier.citationMacromolecules, 2000, v. 33 n. 9, p. 3259-3273en_US
dc.identifier.issn0024-9297en_US
dc.identifier.urihttp://hdl.handle.net/10722/167638-
dc.description.abstractTwo series of polyamides and polyesters derived from 2,2′-bipyridine-5,5′-dicarboxylic acid have been synthesized. Different types of aliphatic and aromatic diamine and diol monomers with different structure were polymerized with the diacid or diacid chloride by using different polymerization methods. Most of these polymers exhibited modest thermal stabilities with decomposition temperatures in the range 320-500 °C, depending on the structure of the polymer main chain. It was found that some polyamides with a rigid main chain formed a lyotropic mesophase when dissolved in concentrated sulfuric acid or HMPA-4% LiCl solvent systems. For those polyamides and polyesters with a more flexible main chain, a thermotropic liquid crystal phase was observed. If a long and flexible pendant chain was attached to the polyesters, side chain melting was observed before the onset of the crystalline-nematic transition. The 2,2′-bipyridyl moieties were able to form a complex with ruthenium. These polymer-ruthenium complexes were either synthesized by metalation of the polymers or synthesized directly from the corresponding ruthenium-containing monomer. After the formation of ruthenium complexes, they were able to enhance the photosensitivity and charge carrier mobility of the polymers. The ruthenium-containing polymers also emit red light at ca. 700 nm owing to the emission from the metal-ligand charge-transfer excited states. Some polymers with good film forming properties were fabricated into simple single-layer light-emitting devices, and red light emission was observed when the devices were subjected to forward bias.en_US
dc.languageengen_US
dc.publisherAmerican Chemical Society. The Journal's web site is located at http://pubs.acs.org/macromoleculesen_US
dc.relation.ispartofMacromoleculesen_US
dc.titleSynthesis and properties of polyamides and polyesters on the basis of 2,2′-bipyridine-5,5′-dicarboxylic acid and the corresponding polymer-ruthenium complexesen_US
dc.typeArticleen_US
dc.identifier.emailChan, WK:waichan@hku.hken_US
dc.identifier.authorityChan, WK=rp00667en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1021/ma991863jen_US
dc.identifier.scopuseid_2-s2.0-0033734496en_US
dc.identifier.hkuros49869-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0033734496&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume33en_US
dc.identifier.issue9en_US
dc.identifier.spage3259en_US
dc.identifier.epage3273en_US
dc.identifier.isiWOS:000086875000015-
dc.publisher.placeUnited Statesen_US
dc.identifier.scopusauthoridYu, SC=7405730262en_US
dc.identifier.scopusauthoridHou, S=7201471840en_US
dc.identifier.scopusauthoridChan, WK=13310083000en_US

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