Preparation of Polysulfone Membranes using Ionic Liquid [C16mim][SCN] as a pore-former and plasticizer，2009高分子材料先进制造业（青岛）国际论坛（8.19-8.21，青岛）-中国聚合物网,论文下载

Preparation of Polysulfone Membranes using Ionic Liquid [C16mim][SCN] as a pore-former and plasticizer

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关键词：

Ionic liquid synthesis Polysulfone membrane Pore-forming Preparation

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所属学科：

分子表征

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2009高分子材料先进制造业（青岛）国际论坛（8.19-8.21，青岛）

简介：

Polysulfone(PSf)membraneswerepreparedbythewet-phase-inversionusing1-hexadecyl-3-methylimidazoliumthiocyanate[C16mim][SCN]asannewadditive.Scanningelectronmicroscopewasutilizedtovisualizecross-sectionsofthemembranestogainmorebetterunderstandingtheinfluenceof[C16mim][SCN]onthepore-forming.Moreover,Membrane-formingmechanismusingionicliquidasaporeformerwasalsodiscussed.Theresultsshowedthationicliquid[C16mim][SCN]hadrestrainedthedemixingofthecastingsolutionsandhastheabilityofthepore-forming,higherthanthoseofitsanaloguesofPEG400.Withincreaseofconcentrationofionicliquid[C16mim][SCN]incastingsolutions,thestructuresofthemembraneschangedfromasymmetricfingerporestothespongy-finger-macrovoidstructureofthepores.ComparedwithPEG400asapore-former,[C16mim][SCN]hasthepore-formingabilitytothemembraneatlowerconcentrationof[C16mim][SCN]inthecastingsolution.Especially,atthe4:76ratioof[C16mim][SCN]/NMP,thepreparedmembranehastheasymmetricfinger-poresstructure,withthe2~6μmporesclosetosurfacelayerandthe10~24μmporeforitssublayer.ItsretentionrateofPEG10000andsolutionfluxare97.1%and48.7L·h-1·m-2.Meanwhile,ionicliquidcanbeaplasticizer,accordingthethermalpropertiesofthemembranes.

作者：

ZHAO Yameia, HU Xiaolingb, YU Jinyangc Guan Ping

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2009-11-06 11:30:54

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