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,2004212225,14(6):1921CHINAELASTOMERICS:2004203222:(1966-),,,,3:([2003]22#);(0342004-5)/3,,(,530001):(AIBN),,2,,:,,n(St)/n(MA)=2/1,,;n(St)/n(MA),(Tg),,:2;;:TQ316.33:A:100523174(2004)0620019203(St)2(MAH)(SMA),,,[15],SMA,11.1:,,;:,;:,,;NaOH,1.21.2.1,,SMA,,60,1.2.2SMAMA,:0.1g,30mL0.1mol/LNaOH(),1h,23,0.1mol/LNaOH,:w(MA)%=98.06n2m100%,nNaOH;m1.2.3(CDR24P),:10mg,,DTA50V,10/min,0mL/min,©1995-2007TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.22.12.1.175n(St)/n(MA)=1/130min,SMA,,111,6%,MA,4%MA2.1.2852%30min,SMA,,222,n(St)/n(MA),MA,n(St)/n(MA)=2/1,MA,47%,,n(St)/n(MA)=3/1,MAn(St)/n(MA)=3/1,,,,2.1.32%,,7585115,,11,,MA,,[6]1/n(St)n(MA)w(MA)/%75132.08541.811546.3751.538.68543.911544.775244.38546.911548.275341.98543.711544.02.22.2.175,,,,22,4%,,2%,,MA6%,MATg,22w()/%Tg/w(MA)/%2132.032.04122.430.96121.538.08123.431.70214©1995-2007TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.2.2.2852%,,,,33,n(St)/n(MA),MA,,MATg,23/n(St)/n(MA)w(MA)/%Tg/141.8116.6851.543.9126.8246.9130.63(1)6%,;,,n(St)/n(MA)=2/1,,;,(2),,,,,:[1],.[J].,1995,(1):53.[2],,,.(SMA)[J].,2002,20(3):161.[3],,.2[J].,1997,17(2):13.[4],.[J].,1997,13(3):32.[5],,,.2[J].,1998,8(1):6.[6],,,.2[J].,1997,18(11):1884.Synthesisandpropertiesofstyrene2maleicanhydridecopolymerLIAOZheng2fu,LIDa2fan,LUOChao2ming(ChemistryDepartmentofGuangxiTeachersEducationUniversity,Nanning530001,China)Abstract:Inthepaper,aseriesofstyrene2maleicanhydridecopolymerweresynthesizedintoluene.Theeffectsoftheinitiatoramount,reactiontemperatureandthemoleratioofstyrenetomaleicanhydrideonthecopolymerstructureswereinvestigatedwithchemicaltitrationandDTA.Theresultsshowthatthecontentofmaleicanhydrideintheresultingcopolymersincreaseswiththeincreaseofthemoleratioofstyrenetomaleicanhydridemonomerandthecopolymerstendtobealternatedstructurewhenthemolera2tiois21.Keywords:styrene2maleicanhydridecopolymer;properties;synthesis126,./©1995-2007TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.