超声波辐射制备羧甲基壳聚糖林友文

,2000,16(1):5459IONEXCHANGEANDADSOITION:10015493(2000)0005406*’221,3500042,350007:,,,、.,,,sh.::0636.1.631.3:A(Chitosan),,。,。,【’,2l。,,。,、131。。,,(6h),l’l。,()、、。,,,H=10)()。,,。,。。,,,。,。,,)90%,.08%,10omesh。,N’:199921:,(1966),,DOI:10.16026/j.cnki.iea.2000.01.0081DMDAAC),;VS)K,,93%;,,。,,。。IR80,;DMATIv,;H6025,;FA1104,:,。1.21.2.1.059,sml,30%NaoH1oml,10ml。,,,4Ow,,。,,40ml,,10%HclpH=7,,,,,100℃。,400rin。1.2.2eI]:100℃,PZos,(g),,50ml。.002%。.2sml,0.lmoNaoH0.lml.7OmlPDMDAAC,(0.1%),PvsK,(105),PvsK(),.2sml,,,PvSKK()。:eoZH(mm。)_.Gx5x102C:pVsK(mmo)△V:Vl(ml)G:(g)1.2.3l’]:,0.lm0NaCIlooml,,30℃,3,〔。000222.2.1,,3h。4h,,。1。1,nù`UJn.…,ùU、àQO,.,`,`,`é6J`UU,Jj.…,`,ù,JfJJùùn」.…..,,J,J2.98.:60℃::chiotsan:eeHzeozH=l93.0:4(W2.2,(mmoug),,60℃,,60℃,,。,acHZcozH.2。2*(℃)(mmog)[](m)269.7259.7254.4219.0171.07978853676,`,`,ù,,à,ù`JUǎfIù0ō11,`.J6,*:;3.5h;:Chsotsan:eeHZeoZH=l:4(w)2.3clCHZCOZH:Chitosan(w),3chitosan:lCcHZcoZH1:6,。lCcHZc02HNaoH,,。,1。3。3*Chitason:ICCH,CO,H(wCo:H(mmoUg)[n](m)2.923.363.673.65197.5219.0205.6215.8.......::60℃:.3h52.4,。4。4,coZH[。]CoZH[]l」(h).(mm0Ug)(mUg)252.76260.66.02.45195.63.03.35245.57.02.63180.43.53.36219.08.02.92168.54.02.98193,09.02.93145.2*:60℃::Chitosan:CICHCZ02H=l:4(wlw),,sh.h5,。“”,7[],、、、,。CICHZCOZH,。。.252.5.1NH:C6oH,,,Nt’],IR173Ocm,,。NH1660cm,、156ocm’141c0m’、131c0m,,N。oo2vPsKH=2),N。l。302X()0180016X()14X()1200l0()080()v(c-m,)1()A)IR(BKr)2.5.22。,。80℃,。,。,,,,,,。,,,,mp)2(A)(B)。200℃,,,。280℃315℃,,。,,,,,。。13,,h5。:ehitosan:eleHZeo=1:5;60,C;3.5h;30%。[1]MauerzzlliR.A.A.,nfaniF.,EmaunelliM.,Mariotti5.,MueM.G.,OCn.v,al.1CSi`ormo.l(Atti)[1981,(5):399Oalt)z[],,,1[J,1997,23(:5)10[3],,,998,(2):34[],,,,,[J],19%,17(:4)1475[],,,1989,(:3)10[6]eTrayamaH.,JPo.cSl’.[J],1952,8(2):243[7],[1991,(2):86PREPARATIONOFCARBOXYMETHYLCHITOSANBYULTRASONICRADIATIONLNIoYuwenlXUChenZLUCahnuiZ1DePartmentofChemisytr,FujianMediealUniversiyt,Fuhzou3500042InstiutteofPolymerSeinee,FujianNomralUnivesriyt,Fuhzou350007Abstraet:Bythemethodofultasronieradiation,watersolublingeabroxymethylehitosanwasPreParated.TheearboxyleontentofmodiifedProduetwasdetemrinatedbyeolloidtitration.DiseussedtheeffeetofvariousreactiontemPeratures,reactiontimeandvariousreaeatntratiosinweightonthedegreeofsubstitution.’ComParedwithmehanehurnmethod,thismethodhasadvantagesofhigherdegreeofsubstiuttionandshorterreaetiontime(sh).Keywords:Chitosan,Ultrasonie,Carboxylmethylehitosan,Colloidtitration