煤油Span80_Twen60水丙烯酰胺反相微乳液聚合动力学

151Vol15,No119993ChemicalReactionEngineeringandTechnologyMarch,1999/Span802Tween60//X(,310027),Span80Tween60,AIBN,Rp[M]1.50[I]0.69[E]1.56,68.8KJ/mol,KPS,:1(PAM),;,()80,CandauF[1,2],107,,90[3]Span80Tween60,//,22.1(AM):,,;(AIBN):,,;(KPS):,,;Span80:,,HLB=4.3;Tween60:,,HLB=14.9;:190225,:1mm,;:0.450.5mm,;:H2300,2.2,,X1998-09-24,1998-11-24::,,27,,40min,,50,,,,,,402.310.2mol/LNaCl,25[],Houwink2Mark[4][]=3.68410-2”M0.6462,31Fig1Conversionandpolymerizationratevsreactiontimeininversemicroemulsionpolymerizationofacrylamide3.1AM50,HLB7.48[5],AIBN,,1AM1,10-3mol/Ls,1;,,,[6],,[7],,;,AM3.2[M]Rp,[M]Rp22,AM,,Rp[M]1.501.50:,;,[M][5],W/O,;,[M],Rp3Rp3,[M],,[M]AM,,[2]411999,,,[M],Rp,,,Rp2Fig2Effectofacrylamideconcentrationinaqueousphaseonpolymerizationrate3Fig3Variationofpolymerizationratewithreactiontimefordifferentacrylamideconcentration3.3[I]4,Rp[I]0.69[I],,Rp0.69,[I],[I][I],,,[I],4Fig4Effectofinitiatorconcentrationonpolymerizationrate5Fig5Effectofemulsifiercontentinoilphaseonpolymerizationrate3.4[E],5111/Span802Tween60//5,Rp[E]1.561.56,[E]Rp,,,AM,AM,,Rp3.5T6lnRp1/T,68.8kJ/mol,70.7kJ/mol[8]6Fig6Effectofreactiontemperatureonpolymerizationrate7KPSFig7InversemicroemulsionpolymerizationofacrylamideinitiatedbyKPS3.6KPSKPSAM7,,,,AIBN(1)KPS,,,,,;Rp,,Rp3.7,,1,,70nm(AIBN),PAM,[6],KPS45nm,[5]KPS,,;AIBN,,,112611999,[M],[2],[I],,1Table1Averagemolecularweightofpolyacrylamide,diameterofparticleandnumberofpolymerchainsperparticlefromseveralinversemicroemulsionspolymerization,%AM[I]3/mmolL-1”M10-6/gmol-1Dp/nmNp15.5116716.5AIBN0.583.127213.628.38.36716.4AIBN0.891.89693135.6116617.4KPS0.812.56454.13:AIBN,KPS,41AM,,2/Span802Tween60//AM:Rp[M]1.50[I]0.69[E]1.563AM68.8kJ/mol45KPSAIBNAM,KPSDp[E][I]”M[M],nm,%,mol/L,g/mol,mol/LNpRpTx[],mol/Lmin,,%,mL/g7111/Span802Tween60//1LeongYS,CandauF.JPhysChem,1982,86:22692CandauF,LeongYS,PouyetGetal.JColloidInterfaceSci,1984,101:1673,.,1993,(5):5704,,.,1992,(1):95./:[].:,19976CandauF,LeongYS,FitchRM.JPolymSci,PolymChemEd,1985,23:1937,,.,1997,18(9):15468MarkHF.EncyclopediaofPolymerScienceandEngineering.3rdEd.NewYork:Wiley,1985.Vol1,177KINETICSOFINVERSEMICROEMULSIONPOLYMERIZATIONINTHESYSTEMOFKEROSINE/SPAN802TWEEN60/WATER/ACRYLAMIDELiXiaoLiuGeYuanHuigen(InstituteofPolymerScienceandEngineering,ZhejiangUniversity,Hangzhou310027)ABSTRACTTheinversemicroemulsionpolymerizationofacrylamideinitiatedbyAIBNinthesystemscomposedofkerosine,Span80-Tween60andwaterhasbeeninvestigated.Ashortpe2riodofconstantratewasobservedduringpolymerization.ItwasindicatedfromtheepperimentsthatthepolymerizationkineticscanbeexpressedasRp[M]1.50[I]0.69[E]1.56.Andtheap2parentactiveenergyofsuchpolymerizationis68.8kJ/mol.ThepolymerizationinitiatedbyKPSwasalsodiscussed.Thenumbleofpolymerchainsperparticleobtainedfromthisstudywerefarlowerthanthosemacroemulsionpolymerization.Keywords:Acrylamide,Microemulsionpolymerization,Kinetics811999