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Anisotropic dewetting holes with instability fronts in ultrathin polymer blend films  
Anisotropic dewetting holes with instability fronts in ultrathin polymer blend films
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所属学科: 分子表征
来源: 第十届高分子物理国际研讨会(PP’2012)(2012.6.4~8,成都)
简介:
Inthepastseveraldecades,thestabilityanddewettingofthinpolymerfilmsonsolidsupportshavedrawnmuchattentionforitsfundamentalscientificinterestsanditsnumeroustechnologicalapplications.Alotofworkhasbeendoneonthedewettingprocessbyexperiments,simulations,andtheories.1Holesnucleationandgrowthisthecommondewettingmechanism.Forthenucleationandgrowthmechanism,theusualscenarioattheinitialstagesofdewettingofathinfilmwithnoslipinvolvestheformationandgrowthofnearlycircularholes.2However,somerecentsimulationsandexperiments3foundthatirregularandfacetedholesinthedewettingoftheupperpolystyrenelayerforathinpolymerbilayer(silica-PMMA-PS-air)couldbeconstructed.Tothebestofourknowledge,althoughthedewetting,phaseseparationandtheircouplingbehaviorsinthinpolymerblendfilmshavebeenstudiedextensively,4,5ananisotropicdewettingofpolymerblendfilmshasneverbeenreporteduptonow.
作者: Meng Ma, Feng Chen, Qiang Fu
上传时间: 2012-11-02 9:35:49
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