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dc.contributor.authorHsu, SCen_US
dc.contributor.authorWhang, WTen_US
dc.contributor.authorHung, CHen_US
dc.contributor.authorChiang, PCen_US
dc.contributor.authorHsiao, KNen_US
dc.date.accessioned2014-12-08T15:35:43Z-
dc.date.available2014-12-08T15:35:43Z-
dc.date.issued2005-01-21en_US
dc.identifier.issn1022-1352en_US
dc.identifier.urihttp://dx.doi.org/10.1002/macp.200400326en_US
dc.identifier.urihttp://hdl.handle.net/11536/24118-
dc.description.abstractA series of polyimide/ZnO nanohybrid films with different ZnO content were prepared from a rigid pyromellitic dianhydride-4,4'-diaminodiphenyl ether (PMDA-ODA) polyimide (PI) and a flexible 3,3,4,4-benzophenonetetracarboxylic acid dianhydride-4,4'-diaminodiphenyl ether (BTDA-ODA) PI with ZnO nanoparticles (3-4 nm). Fourier-transform infrared (FT-IR) and X-ray photoelectron spectroscopy (XPS) depict that the ZnO nanoparticles function as a physical cross-linking agent with PI through hydrogen bonding between the OH on the ZnO nanoparticles and the C=O of the imide groups. ZnO nanoparticles in the rigid PMDA-ODA matrix cause a larger percentage decrease in the coefficient of linear thermal expansion (CTE) than in the flexible BTDA-ODA matrix. The BTDA-ODA/ZnO hybrid films have two transition peaks in dynamic mechanical tan curves, but PMDA-ODA/ZnO hybrid films only have one transition peak. Thermogravimetric analysis reveals that ZnO decreases the thermal degradation temperature (T-d) in both hybrid films, but less so in PMDA-ODA/ZnO films. Trans-mission electron microscopy (TEM) images reveal that the rigid matrix induces larger particle size (30-40 nm) compared to the flexible matrix (10-15 nm).en_US
dc.language.isoen_USen_US
dc.subjectnanocompositesen_US
dc.subjectpolyimidesen_US
dc.subjectstructure-property relationsen_US
dc.subjectthermal propertiesen_US
dc.subjectZnOen_US
dc.titleEffect of the polyimide structure and ZnO concentration on the morphology and characteristics of polyimide/ZnO nanohybrid filmsen_US
dc.typeArticleen_US
dc.identifier.doi10.1002/macp.200400326en_US
dc.identifier.journalMACROMOLECULAR CHEMISTRY AND PHYSICSen_US
dc.citation.volume206en_US
dc.citation.issue2en_US
dc.citation.spage291en_US
dc.citation.epage298en_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:000226696300013-
dc.citation.woscount42-
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