雙長(zhǎng)鏈酯基季銨鹽的合成研究

1、江南大學(xué)碩士學(xué)位論文雙長(zhǎng)鏈酯基季銨鹽的合成研究姓名：朱巧云申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：應(yīng)用化學(xué)指導(dǎo)教師：蔣惠亮20090701AbstractAbstractEsterquatsarefavoredtomanyadvancedcountriesbecauseofitsbiodegradationandsofteningpropertyTechnicsconditionsofesterificationreactionwereoptimize

2、dthroughSinglefactorexperimentandorthogonalexperimentSOtheidealreactionconditions鋤℃thereactiontemperaturel70℃thereactiontime4h／2h，themolarratiol：3：08(MDEA：stearicacid：TEA)，catalyst05％wt(thetotalweightofthesteaficacid，MDE

3、AandTEA)UsingthemixtureofV(chloroform)：V(methan01)=25：1嬲mobilephase，theRfvalueoftriesteramine，diesteramine，andmonoesteramineareO60，047and038respectivelyThethreefactionsisolatedbycolumnchromatographywerequalitativelydetec

4、tedandverifiedbyhi曲performanceliquidchromatographyinfraredspectrumandmassspectrometryTheresultsindicatedthatthethreefractionsweretriesteramine，diesteramineandmonoesteramineBesidesthis，thepercentageofthethreefactionswere9

5、326％，9439％and9285％respectivelyComparisonsweremadebetweenthemasspercentageobtainedbycolumnchromatographyandhighperformanceliquidchromatographywhichindicatesthattheirresultswerecosistentInquatemizedresponse，weinvestigatedt

6、hereactionconditionsaboutepichlorohydrindiethylsulfatewhich嬲aquaternaryammoniumreagentrespectively、耐mtheesteramineTheresultsindicatethatepichlorohydrinCanOCCUrchemicalreaction、耐tllesterquaternaryammoniumamine，butbecauseo

7、fepoxyringandlongchainsofesteramine，thelargestericeffectrequiresahigherreactionconditionsWhenthereactiontemperatureislligh，onehandesteran艟neiseasytobecarbonized，andtheotherhandtheepoxyringmaybecracked，SOepichlorohydrinis

8、notsuitable觴aquaternaryesteraminereagentDiethylsulfateCanalsooccurchemicalreaction誦t11esterquaternaryammoniumamine，butitsreactionconditionsishigherthandimethylsulfateasaquatemaryammoniumreagent，andwehavenotyetfindasuitab