1、天津大學(xué)碩士學(xué)位論文苯乙烯馬來酸酐丙烯酰胺二十醇酯的合成及降凝效果的研究姓名：石承輝申請學(xué)位級別：碩士專業(yè)：化學(xué)工程指導(dǎo)教師：張香文曹曉梅20061201ABSTRACTThepaperisrelatedtothedevelopmentofpourpointdepressantofcnldeoilathomeandabroad，themechanismofpourpointdepressants，andthefactorsthatinf

2、luencedepressionesectsByorthogonaltest，wesynthesizethemesoproductthroughCOpolymerization，withthestyrene，maleicanhydrldeandacrylovamideasreactants，benzeneassolvent，benzoperoxideasinitiator，wnlcnareunderthedifferentmonomer

3、radio，temperatureandinitiatordosageIhen14一dimethybenzenesulfuricacidascatalyst，reactiontemperature120。C，reactiontime4hdistillingatlowatmospherewegetninekindsofpourPomtdepressantsstyrene／maleicanhydride／aeryloyamideandeic

4、osanolestercopolymerWiththehelpofpourpointdeterminingapparatus，theProPenlesofninekindspourpointdepressantsaremeasuredTheoptimalreactlonconditionsareinthefollowing：co—polymerizationpmocessn(styrene)：nfmaleicanhydride)：n(a

5、cyloy)=1：6：3，reactiontemperatum70。C，reactiontime8handinitiatordosagewasO5％(pergramLItisshownthatthepourPOIntdepressantdosageisO4％andheatingthecrudeoilof70“Cleadtodepressantofitspourpointfrom32。Cto18“CAtthesametime，withth

6、eapplicationofinfraredRayapparatusandGelPermeationChromatography，structureofproductisalsodiscriminatedandanalyzedKeywords：pourpointdepressant，CO。polymerization，styrene／malelcanhydride／acryloyamideandeicosanolestercopolym