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2000214Vol.21No.42000(72)JOURNALOFNORTHCHINAINSTITUTEOFTECHNOLOGY(SumNo.72):1006-5431(2000)04-0312-04X王久芬,蔡开勇,李德水(,030051):(PAM).,-N,N-,PAM,PAM.9105PAM.PAM;PAM.:;;-:O63.5:A0(PAM)[1],[3,4].,.,,.,PAM,4:.,,,,,;,,,;,,,,,;,,,,,,,.,.,,,.11.1,,,,,,,.X:2000-07-11::(1942-),,.:.1.2:(1);(2),;(3),,;(4)10min,(1/3),;(5)30min,,,1min,;(6),,.1.31.3.1()(1)GB/T12005.10-92;(2)M-vGB/T12005.10-92,M-vGM-v=802[G]1.25(1)1.3.2()(1)GB12005.3-89;(2)(2)AM=(V1-V2)c0.03554ms(2)AM;V1,mL;V2,mL;c,molL-1;0.03554([Na2S2O3]=1.00molL-1),g;m,g;s,%.1.3.3GB12005.8-89.22.1,.,,,.,,PAM.:,,.,1(1).,27%32%,.2.2,PAM.313(72)(),,,.,,,1(2).1,,,.2.3,,,Arrheniusk,M,,2.2,,,PAM.1-;2-1PAMFig.1Theinfluenceofmonomerconcentrationandinitiatorconcentrationontherelativemolecularmass2PAMFig.2TheinfluenceofpolymerizationtemperatureontherelativemolecularmassofPAM2.41-;2-3Fig.3Theinfluenceofstirringmeansontherelativemolecularmass,,.PAM,,,,,,.,,,.,,,.,.3.3,,,PAM,.,:31420004(1)PAM,,,PAM,,,;(2),.:[1].[J].,1991,(5):345352.[2],,,.[J].,1990,(3):1018.[3],,,.[J].,1998,(8):2531.[4].[D].:,1999.[5]OzerogluC,GuneyO.Therelationshipbetweenviscosityofwater-solublepolymeranditsmolecularweight[J].JApplPlySci,1996,60(5):759768.[6]BajpaiUDN.Thesynthesisofpolyacrylamidebysedimentationpolymerization[J].JApplPolySci,1991,(42):205212.[7]JeeM,ChadhaG.Glycine-Ce(IV)saltsandKMNO4initiatorsystemswereusedforthepolymerizationofacrylamide[J].JApplPolySci,1996,60(5):759766.[8],..()[M].:,1997.[9].[M].:,1998.[10]DlncerB,BayulkenS.Radicalpolymerizationofacrylamideinitiatedbycericammoniumnitrate-methionineredoxinitiatorsystem[J].JApplPolySci,1997,63(12):16431651.TheSynthesisofPolyacrylamidebyPrecipitationPolymerizationWANGJiu-fen,CAIKai-yong,LIDe-shui(Dept.ofChemicalEngineering,NorthChinaInstituteofTechnology,Taiyuan030051,China)Abstract:AimTosynthesizepolyacrylamide(PAM)byprecipitationpolymerization.MethodsPolyacrylamidewassynthesizedtoadoptstaticpolymerizationconditionandthepatternoffeedinginitiatorinbatch,acetoneassolvent,BPO-N,N-dimethylanilineasredoxinitiator.TheinfluenceofeachfactorontherelativemolecularweightandpropertiesofPAMisdiscussed.ResultsThepowderyPAMhavinggoodwatersolubilitywasobtained,itsrelativemolecularweightwasover900,000.ConclusionThepowderyPAMhavinggoodwatersolubilityissynthesizeddirectlybyprecipitationpolymerization.TheconcentrationofinitiatorandtemperatureofpolymerizationwereimportantfactorsontherelativemolecularweightofPAM.Keywords:polyacrylamide;precipitationpolymerization;initiator315(72)()