丙烯酸酯乳液聚合的影响因素

2009-06-021984-。2009316CHEMISTRYANDADHESION·5·(Miceell)(oligmer)[1]。-。1[2]。。。。-[3]2[4]--、、、-[5]。PSi、、、[6]。-P(St/MMA)[7]。、1,1,2,21.1500012.150040BA、MMAGMA-。-。。TEM-。-TQ433.436A1001-0017(2009)06-0005-05InfluencingFactorsofAcrylateEmulsionPolymerizationWANGWei1,ZHANGBin2andZHANGXu-gang2(1.CollegeofMaterialScienceandEngineering,HarbinEngineeringUniversity,Harbin150001,China;2.InstituteofPetrochemistry,HeilongjiangAcademyofScience,Harbin150040,China)Abstract:Core-shellnanoparticleswithactivestructureweresynthesizedbyemulsionpolymerizationmethod.BAandMMAwereemployedtoformthemainchainstructureandGMAwasusedasfunctionalmonomer.Thenanoparticles’micro-structureswereobservedbyTEM,andthetypicalcharacteristicabsorptionpeakswereshownbyIR.Thefactorswhichhadeffectsonacrylateemulsionpolymerizationwereanalyzed,andtheoptimalpolymerizationsystemwasconfirmed.Thenastableemulsionpossessedexcellentpropertieswasreceived.Theparticles’structuremorphologyandsizewereobservedbyTEM,andthenano-particleswithcore-shellstructurewereobtained.Keywords:Acrylate;emulsionpolymerization;core-shellnanoparticles;polymerizationsystem;influencingfactors。、、-、[8]。[9]。11.1E-51BAMMASDSKPSGMANaHSO3NH3·H2O。1.2、-。-。、、4。1、、、23、4、。。。1.3BA/MMA80/20GMA、10wt%KPS、0.5wt%、SDS、1.5wt%11Table1Measurementresultsoftheproduct1.41BA/MMA/GMA80/20/10。758cm-11731cm-1C=O2969cm-1-CH3908cm-1BA、MMA、GMA。1BA/MMA/GMAFig.1FTIRspectrumofBA/MMA/GMAsystem22.1。/%pH/%41.58~913.390.750.700.650.600.550.500.4540003000200010000Wavenumber/cm-1Transmittance/%Vol．31．No．62009·6·/℃7080903h4h30min5min4h/%75.694.2-70℃。。。。,80℃。2Table2Effectoftemperatureontheemulsionproperties2.2。。34h4~5h。3Table3Effectofreactiontimeontheemulsionproperties2.3、。、、、[10]。BA、2-EHAMMA、StGMA。、。4Table4Effectofdifferentmonomersontheemulsionproperties4MMABAGMA。BAMMA-。5Table5Effectoftheratioofsofttohardmonomerontheemulsionproperties5。。、8020、、。2.46/h2345/%70.478.997.398.1BA/MMA/GMABA/St/GMA2-EHA/MMA/GMA2-EHA/St/GMABAMMA9010802070306040/%16.4712.3913.4616.232009316CHEMISTRYANDADHESION·7·。。0.3wt%~0.4wt%0.5wt%。0.6wt%。、0.5wt%Ca2+。6Ca+Table6Effectofwaterborneinitiatoramountontheemulsionstability2.5、。SDSBA/MMA80/20GMA、10wt%KPS、0.5wt%、500rmp77SDS、2.0wt%2.5wt%SDS。7Table7Effectofemulsifieramountontheemulsionproperties2TEM、。。、2.0wt%~2.5wt%。2SDSTEMFig.2TEMphotosofemulsionwithdifferentSDSconcentrations(1)1.5wt%(2)2.0wt%(3)2.5wt%(4)2.7wt%(5)3.0wt%2.6。BA/MMA80/20GMA、10wt%KPS、0.6wt%、SDS、2.0wt%300~800rmp8。/wt%0.30.40.50.6/%89.790.694.485.3Ca2+SDS/wt%1.52.02.52.73.0/%90.191.491.592.192.4/％10.213.414.314.816.3Vol．31．No．62009·8·。。。8Table8Effectofstirringspeedontheemulsionproperties3TEM。500rmp600rmp700~800rmp。3TEMFig.3TEMphotosofemulsionwithdifferentstirringspeeds1300rmp2500rmp3700rmp4800rmp[11]。Kawhaara[12]-/。3BAMMAGMA-。F-IRBA、MMA、GMA。80℃4~5h、8020、0.5wt%TEM-、2.0wt%500rmp。1LOVELLPA,EL-AASERMS.EmusionPolymerizationandEmulsionPolymersM.Chichester,UK:JohnWileyandSons,1997.2,,.J.,2000,l(5):33～37.3,.J.,2002,(3):115～118.4,,.J.,11(3):47～51.5CFLEE.Thepropertiesofcore-shellcompositepolymerlatex:EffectofheatingonthemorphologyandphysicalpropertiesofPMMA/PScore-shellcompositelatexandthepolymerblendsJ.Polymer,2000,41(4):1337～1344.6PFLUGERLH.CHARLSG.MultilayeredpVCeoatingeomPosition:US,3291768P.1966-12-13.7REBERTNT.Siloxane-acrylatecoPolymersandemulsionthereo:US,3575910P.1971-04-20.8MDEVON,JGARDON,GROBERT,etal.Effectofcore-shelllatexmorphologyonfilmformingbehavior,J.Appl.Polym.Sci.,1990,39(10)2119～2128.9PELTONR.Temperature-sensitiveaqueousmicrogelsJ.Adv.ColloidInterf.Sci.,2000,85:110,.M.:1996:58～75.11.M.:,1996:113-154.12HIDEKAIKWAHAARA,TOKIOGOTO,KIYOSHIOHNISHI.Preparationofepoxyresin/acyrliccompositelatexesbyminieul－sionpolymerizationmethodJ.JoumalofAppliedPolymerSci－ence2001,81:128～133./rmp300500600700800/%92.192.392.493.093.5/%8.07.47.37.37.22009316CHEMISTRYANDADHESION·9·