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dc.contributor.authorSung, HHen_US
dc.contributor.authorLin, HCen_US
dc.date.accessioned2014-12-08T15:18:49Z-
dc.date.available2014-12-08T15:18:49Z-
dc.date.issued2005-07-01en_US
dc.identifier.issn0887-624Xen_US
dc.identifier.urihttp://dx.doi.org/10.1002/pola.20741en_US
dc.identifier.urihttp://hdl.handle.net/11536/13520-
dc.description.abstractA series of soluble alternating poly(fluorene)-based copolymers containing electron-transporting 1,3,4-oxadiazole (OXD) and hole-transporting carbazole pendants attached to the C-9 position of fluorene units by long alkyl spacers were synthesized. These copolymers possess mesogenic and nomnesogenic pendants attached to a rigid mesogenic poly(fluorene) (PF) backbone. All these polymers exhibit glass-forming liquid crystalline properties, including the nematic and smectic A (SmA) phases, and reveal much wider mesophasic temperature ranges than that of PF. The thermal properties and mesomorphism of these conjugated polymers are mainly affected by the nature of these pendants, and thus the mesophasic temperature ranges and glass-forming properties are greatly enhanced by introducing the OXD pendants. In addition, the tendencies of crystallization and aggregation of PF are also suppressed by introducing the OXD pendants. A single layer device with P4 as an emitter shows a turn-on voltage of 5 V and a bright luminescence of 2694 cd/m(2) at 11 V with a 2 power efficiency of 1.28 cd/A at 100 mA/cm(2). (c) 2005 Wiley Periodicals, Inc.en_US
dc.language.isoen_USen_US
dc.subjectcarbazoleen_US
dc.subjectglass-forming propertyen_US
dc.subjectmesomorphismen_US
dc.subjectoxadiazole (OXD)en_US
dc.subjectpendanten_US
dc.subjectpoly(fluorene)en_US
dc.titleSynthesis and characterization of poly(fluorene)-based copolymers containing various 1,3,4-oxadiazole pendantsen_US
dc.typeArticleen_US
dc.identifier.doi10.1002/pola.20741en_US
dc.identifier.journalJOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRYen_US
dc.citation.volume43en_US
dc.citation.issue13en_US
dc.citation.spage2700en_US
dc.citation.epage2711en_US
dc.contributor.department材料科學與工程學系zh_TW
dc.contributor.departmentDepartment of Materials Science and Engineeringen_US
dc.identifier.wosnumberWOS:000230014500002-
dc.citation.woscount39-
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