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dc.contributor.authorSun, YSen_US
dc.contributor.authorJeng, USen_US
dc.contributor.authorLiang, KSen_US
dc.contributor.authorYeh, SWen_US
dc.contributor.authorWei, KHen_US
dc.date.accessioned2014-12-08T15:17:23Z-
dc.date.available2014-12-08T15:17:23Z-
dc.date.issued2006-02-08en_US
dc.identifier.issn0032-3861en_US
dc.identifier.urihttp://dx.doi.org/10.1016/j.polymer.2005.12.055en_US
dc.identifier.urihttp://hdl.handle.net/11536/12632-
dc.description.abstractWith specific annealing schemes applied to a neat polystyrene-block-poly(ethylene oxide) (SE) and its composites with cadmium sulfide quantum dots (CdS QD), we have observed microdomain structures and phase transitions in the system using temperature-resolved small-angle X-ray scattering (SAXS) and transmission electron microscopy (TEM). Both TEM images and SAXS results show clearly that incorporation of surfactant-tethered US QD preferentially into PEO blocks leads to increases in thermal stabilities of both bcc-packed lattice (referred as long-range order) and microdomains themselves in the sphere-forming SE/CdS composites. The bcc-packed lattice in the SE/CdS composites sustains better than that in the neat SE, during a temperature elevation to similar to 160 degrees C, at which the bcc-packed SE/CdS spheres start to transform into micelles with a short-range liquid-like order. Quantitative model analysis shows that the PEO/CdS micelles can retain their size in the SE/CdS composites up to 200 degrees C, whereas the PEO micelles shrink after the softening of the PS matrix around 100 degrees C and disassociate largely into the PS matrix of the neat SE at 160 degrees C. (c) 2005 Elsevier Ltd. All rights reserved.en_US
dc.language.isoen_USen_US
dc.subjectcopolymer-nanoparticle compositeen_US
dc.subjectmicrodomainen_US
dc.subjectphase transitionen_US
dc.titleTransitions of domain ordering and domain size in a spherical-forming polystyrene-block-poly(ethylene oxide) copolymer and its composites with colloidal cadmium sulfide quantum dotsen_US
dc.typeArticleen_US
dc.identifier.doi10.1016/j.polymer.2005.12.055en_US
dc.identifier.journalPOLYMERen_US
dc.citation.volume47en_US
dc.citation.issue4en_US
dc.citation.spage1101en_US
dc.citation.epage1107en_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:000235522900019-
dc.citation.woscount16-
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