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:(1966-),,,,,1998,,(,200433):,V=1ö2V=0,,,:;;,,(solubility),[1],;(affinity),(goodsolvent)(poorsolvent),,,,,,Flory2Krigboum[2],,Flory2Huggins,,A2=0,V=1ö2,Flory2Huggins,theta,,V1ö2,,V1ö2,theta,,RRn1ö2,n,V=0,,,,,,[3],Flory2Krig2baumFlory2Huggins,VSM,,V=VMS-(VMM+VSS)ö2,vanderWaals,,A,VMM=-kA2M,VMS=-kAMAS,VSS=-kA2S,k,V=k(AS-AM)2ö2E0792©1995-2003TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.V,V=1ö2,de2Gennes[4]Doi[5],,,,,,V=0,V0,,,,theta,thetaV=0Flory[6]PrinciplesofPolymerChemistry’(),Freed[7]Fujita[8]Theta(1)V=1ö2,,,,,,,,(2),,,,V1ö2,,,V,(3),V0,,,,theta[3],,,,;,,!:[1],,,..:,1990.114.[2],,,..:,1995.507.[3]HuWB.JChemPhys,1998,109:3686.[4]deGennesP2G.ScalingConceptsinPolymerPhysics.IthacaandLondon:CornellUniversityPress,1979,72;114.[5]DoiM.IntroductiontoPolymerPhysics.Oxford:ClarendonPress,1996,15.[6]FloryPJ.PrinciplesofPolymerChemistry.Ithaca:CornellUniversityPress,1953,525.[7]FreedKF.RenormalizationGroupTheoryofMacromolecules.NewYork:JohnWiley&Sons,1987,99.[8]FujitaH.PolymerSolution.Amsterdam:Elsevier,1990,8.8920006©1995-2003TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.TwoKindsofJudgementforGoodSolventandPoorSolventofPolymersHUWen2bing(DepartmentofMacromolecularScience,FudanUniversity,Shanghai200433,China)Abstract:Therearetwokindsofjudgementtogoodnessofthesolventinpolymersolutions.OneisV=1ö2,fromthefreeenergyofFlory2Hugginsmean2fieldcalculationandthesecondVirialcoefficientintheexpansionoftheosmoticpressurefordilutionsolution;anotherisV=0,fromthemixingheat.TheformeroccursinthecurrenttextbooksaboutpolymerphysicsinChina,buttheauthorprefersthelatterandgiveshisreasons.Keywords:Polymersolution;Goodsolvent;Poorsolvent(68)[13]HerbertR,MaufredSJoachimL.DE,3403880.1985.[14]MotoiK,ToruI,HiroshiW,etal.EP,341716.1989.[15]DaikinIndustries.Ltd,Japan,JP,09,165490.1997.[16]KenjiroM,YasuciK,IakashiT,etal.JP,62,100511.1987.[17]NobuhikoT,RyujvI,YasushiY,etal.JP,08,259773.1996.[18]GeorgeYS,ChritopherPJ.EP,320156.1989.[19]TetsuoA.JP,63,314202.1988.[20]TetsuoA.JP,63,314222.1988.[21]HirooT,ShinichiK,FumioY,JP,06,56994,1994.[22]KazuoI.JP,02,191654.1990.[23]KatsujiI,TakashiK.JP,06,17034.1994.[24]CiardelliF,AgliettoM,diMirabelloLM,etal.ProgressinOrganicCoatings,1997,32:43.[25]ShinichiK,HidetoshiT.JP,10,25446.1998.[26]KuwamuraS,HibiT.SurfaceCoatingsInternational,1997,(11):525.[27]DainipponInks,Chemicals.ThroughSiberHegnerLtd,JournalofOilandColourChemistAssociation,1993,(3):122.[28]CarlhansS,JuttaR,HenningB,etal.EP,345552.1989.[29]ChursinVI,SolovevaVYu,Tekhnol.LegkPromsti,1986,29(6):34.[30]DariaL,TizianaP,LucianoM.EP,635535.1995.[31]YujiroM,KatsushiS.JP,04,320837.1992.[32]DariaL,MarioV.EP,337312.1989.[33]YoshinobuD,ShinichiK,TokioG,etal.JP,04,248821.1992.ResearchandApplicationoftheFluoropolymerLatexUsedforCoatingsYUZhang2qing(DepartmentofChemistryandChemicalEngineering,SuzhouUniversity,Suzhou215006,China)Abstract:Fluoropolymerlatexmayacquireextensivelyuseincoatingbecauseofitsexcellentsurfacepropertyandweatherability.Thepaperwith33referencesreviewedthepreparation,prop2erty,applications,andtherelationshipbetweenthecompositionandthepropertiesofthefluo2ropolymerlatex.Keywords:Fluoropolymerlatex;Latexcoating;Weatherability©1995-2003TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.