Please use this identifier to cite or link to this item: http://hdl.handle.net/11455/70577
DC FieldValueLanguage
dc.contributor.authorTsai, W.C.en_US
dc.contributor.authorLin, J.J.en_US
dc.date2010zh_TW
dc.date.accessioned2014-06-11T06:00:02Z-
dc.date.available2014-06-11T06:00:02Z-
dc.identifier.issn0743-7463zh_TW
dc.identifier.urihttp://hdl.handle.net/11455/70577-
dc.description.abstractSelf-assembled rodlike (0.3-2.5 mu m in diameter and 5.3-31 mu m in length) and disklike microstructures (1.8-10.6 mu m in width and 0.1-1.0 mu m in thickness) are uniquely present in amorphous clay aggregates. Clay units were prepared by intercalation of Na(+)-montmorillonite (Na(+)-MMT) with copper ions (Cu(2+)) and poly(oxypropylene)-amine salt (POP) in simultaneous or stepwise ionic exchange reactions. Differences in process control during incorporation of Cu(2+) and hydrophobic POP greatly affected the layer structure of the clay units (d spacing of 12-53 angstrom) and consequently their amphiphilic dispersion properties. By controlling the dispersion in water and drying at 80 degrees C, highly ordered self-assembly structures were obtained, presumably as a result of self-piling of clay units in competing vertical and horizontal directions. In general, association with Cu(2+) yielded units with a disklike microstructure, in contrast to the rod-like structure obtained for POP-intercalated clay. The self-assembled structures were characterized using X-ray diffraction, UV adsorption, thermal gravimetric analysis, zeta potential, scanning electron microscopy, and energy-dispersive X-ray spectroscopy techniques. Control of the clay self-piling process provides a new synthetic route for the fabrication of bottom-up microstructures that are potentially useful for templates, sensors, and electronic devices.en_US
dc.language.isoen_USzh_TW
dc.relationLangmuiren_US
dc.relation.ispartofseriesLangmuir, Volume 26, Issue 12, Page(s) 10177-10182.en_US
dc.relation.urihttp://dx.doi.org/10.1021/la100313jen_US
dc.subjectblock-copolymersen_US
dc.subjecttriblock copolymersen_US
dc.subjectdiblock copolymersen_US
dc.subjectliquid-crystalsen_US
dc.subjectsmectiteen_US
dc.subjectnanostructuresen_US
dc.subjectnanoparticlesen_US
dc.subjectnanofibersen_US
dc.subjectplateletsen_US
dc.subjectsurfacesen_US
dc.titleCopper-Ion-Assisted Self-Assembly of Silicate Clays in Rod- and Disklike Morphologiesen_US
dc.typeJournal Articlezh_TW
dc.identifier.doi10.1021/la100313jzh_TW
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.openairetypeJournal Article-
item.cerifentitytypePublications-
item.fulltextno fulltext-
item.languageiso639-1en_US-
item.grantfulltextnone-
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