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Article: Synthesis and characterization of poly(benzobisoxazole)s and poly(benzobisthiazole)s with 2,2′-bipyridyl units in the backbone

TitleSynthesis and characterization of poly(benzobisoxazole)s and poly(benzobisthiazole)s with 2,2′-bipyridyl units in the backbone
Authors
Issue Date1998
PublisherAmerican Chemical Society. The Journal's web site is located at http://pubs.acs.org/macromolecules
Citation
Macromolecules, 1998, v. 31 n. 17, p. 5639-5646 How to Cite?
AbstractThis paper reports the synthesis and physical properties of a series of novel bipyridine-containing poly(benzobisoxazole)s and poly(benzobisthiazole)s. The polymers were synthesized by polycondensation of 2,2′-bipyridine-5,5′-dicarboxylic acid with diaminobenzenediols in poly(phosphoric acid). Some model compounds were also synthesized by a similar approach for comparison. The polymers exhibited extremely high thermal stabilities in air or nitrogen atmosphere. From the polarized microscopic studies, lyotropic mesophases were observed in some polymer solutions in methanesulfonic acid. The 2,2′-bipyridyl moieties on the polymer main chain were able to form metal complexes with bis(2,2′-bipyridyl)ruthenium(II) compounds, which was proved by different characterization methods such as electronic and luminescence spectroscopy, cyclic voltammetry, and thermal analysis. The charge carriers mobilities of the polymer metal complexes are of the order of 10-5 cm2 V-1 s-1, which are 2 orders of magnitude higher than that of the metal-free polymers. This clearly shows that the ruthenium complexes can play the role as charge carriers in the charge transport process.
Persistent Identifierhttp://hdl.handle.net/10722/167587
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.authorGong, Xen_US
dc.contributor.authorChan, WKen_US
dc.date.accessioned2012-10-08T03:08:50Z-
dc.date.available2012-10-08T03:08:50Z-
dc.date.issued1998en_US
dc.identifier.citationMacromolecules, 1998, v. 31 n. 17, p. 5639-5646en_US
dc.identifier.issn0024-9297en_US
dc.identifier.urihttp://hdl.handle.net/10722/167587-
dc.description.abstractThis paper reports the synthesis and physical properties of a series of novel bipyridine-containing poly(benzobisoxazole)s and poly(benzobisthiazole)s. The polymers were synthesized by polycondensation of 2,2′-bipyridine-5,5′-dicarboxylic acid with diaminobenzenediols in poly(phosphoric acid). Some model compounds were also synthesized by a similar approach for comparison. The polymers exhibited extremely high thermal stabilities in air or nitrogen atmosphere. From the polarized microscopic studies, lyotropic mesophases were observed in some polymer solutions in methanesulfonic acid. The 2,2′-bipyridyl moieties on the polymer main chain were able to form metal complexes with bis(2,2′-bipyridyl)ruthenium(II) compounds, which was proved by different characterization methods such as electronic and luminescence spectroscopy, cyclic voltammetry, and thermal analysis. The charge carriers mobilities of the polymer metal complexes are of the order of 10-5 cm2 V-1 s-1, which are 2 orders of magnitude higher than that of the metal-free polymers. This clearly shows that the ruthenium complexes can play the role as charge carriers in the charge transport process.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 characterization of poly(benzobisoxazole)s and poly(benzobisthiazole)s with 2,2′-bipyridyl units in the backboneen_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/ma980381p-
dc.identifier.scopuseid_2-s2.0-0032139522en_US
dc.identifier.hkuros40244-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0032139522&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume31en_US
dc.identifier.issue17en_US
dc.identifier.spage5639en_US
dc.identifier.epage5646en_US
dc.identifier.isiWOS:000075628600013-
dc.publisher.placeUnited Statesen_US
dc.identifier.scopusauthoridYu, SC=7405730262en_US
dc.identifier.scopusauthoridGong, X=7201999272en_US
dc.identifier.scopusauthoridChan, WK=13310083000en_US

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