Please use this identifier to cite or link to this item: http://hdl.handle.net/11455/34367
DC FieldValueLanguage
dc.contributor.authorHo, R.M.en_US
dc.contributor.author林助傑zh_TW
dc.contributor.authorTseng, W.H.en_US
dc.contributor.authorFan, H.W.en_US
dc.contributor.authorChiang, Y.W.en_US
dc.contributor.authorLin, C.C.en_US
dc.contributor.authorKo, B.T.en_US
dc.contributor.authorHuang, B.H.en_US
dc.date2005zh_TW
dc.date.accessioned2014-06-06T07:47:36Z-
dc.date.available2014-06-06T07:47:36Z-
dc.identifier.issn0032-3861zh_TW
dc.identifier.urihttp://hdl.handle.net/11455/34367-
dc.description.abstractA series of degradable block copolymers, polystyrene-b-poly((L)-lactide) (PS-PLLA), with PLLA hexagonal cylinder (HQ morphology has been synthesized in this study. Well-oriented, perpendicular PLLA cylinders of PS-PLLA thin films were efficiently achieved by spin coating using appropriate solvents regardless of the use of substrates. After hydrolysis of PLLA, well-oriented HC nanochannel arrays over large area in addition to uniform surface with controlled thickness and domain size were obtained; providing a simple and efficient path to prepare nanopatterned templates for applications. The induced orientation of PS-PLLA microdomains was strongly dependent upon the evaporation rate of solvent and its solubility between constituted blocks. The origins for the formed perpendicular HC morphology were systematically studied. The primary concern of controlled morphology for nanopatterning is to develop ordered microphase-separated morphology by considering the time scale for segregation, namely segregation strength during solvent evaporation. The induced orientation is attributed to the permeation discrepancy between phase-separated microdomains. The perpendicular morphology is initiated from the air surface, and formed in order to create an optimized condition (i.e. the fastest path) for solvent evaporation whereas parallel morphology may impede the evaporation of solvent molecules. Following the nucleation of microphase separation, the perpendicular morphology can be kinetically induced by solvent evaporation. (c) 2005 Elsevier Ltd. All rights reserved.en_US
dc.language.isoen_USzh_TW
dc.relationPolymeren_US
dc.relation.ispartofseriesPolymer, Volume 46, Issue 22, Page(s) 9362-9377.en_US
dc.relation.urihttp://dx.doi.org/10.1016/j.polymer.2005.07.069en_US
dc.subjectspin coatingen_US
dc.subjectsolution castingen_US
dc.subjectdegradable block copolymeren_US
dc.subjectblock-copolymersen_US
dc.subjectphase-behavioren_US
dc.subjectmicrophase separationen_US
dc.subjectvaryingen_US
dc.subjectselectivityen_US
dc.subjectpatternsen_US
dc.subjectarraysen_US
dc.subjectorderen_US
dc.subjectcrystallizationen_US
dc.subjectnanostructuresen_US
dc.subjectlithographyen_US
dc.titleSolvent-induced microdomain orientation in polystyrene-b-poly (L-lactide) diblock copolymer thin films for nanopatterningen_US
dc.typeJournal Articlezh_TW
dc.identifier.doi10.1016/j.polymer.2005.07.069zh_TW
item.grantfulltextnone-
item.openairetypeJournal Article-
item.cerifentitytypePublications-
item.languageiso639-1en_US-
item.fulltextno fulltext-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
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