邻甲苯胺和醋酸乙烯酯的氧化共聚

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1、同济大学材料科学与工程学院硕士学位论文邻甲苯胺和醋酸乙烯酯的氧化共聚姓名：董志清申请学位级别：硕士专业：材料学指导教师：李新贵20030401邻甲苯胺和醋酸乙烯酯的氧化共聚OxidativeCopolymerizationBetweeno-ToluidineandVinylAcetateMastercandidate：Zhi-QingDongDirector：Prof．Dr．Xin．GUiLiAbstractAseriesofcopolymerizationproductsbetweeno-toluidine(OT)andvi

2、nylacetate(VAc)withvariouscomonomerratiosweresynthesizedbyoxidativecopolymerizationsthroughthreedifferentcopolymerizationmethods：homogeneoussolution，emulsionandinverseemulsioncopolymerizations．Theopencircuitpotentials(OCP)andthesolutiontemperatureswererecordedtorese

3、archtheprogressofthecopolymerizationsanditwasfoundthattheOCPs，thetemperaturesandtheyieldsofthecopolymerizationshadacloselyrelationwithfeedOTcontent．Theparticlesizeanditsdistribution，thestructure，thefilm—formabilityandthethermalpropertyofthecopolymerizationproductswe

4、recharacterizedrespectivelybyLaserParticlesizeanalysis，Fouriertransforminfraredspectroscopy,UV-visiblespectroscopyandthermogravimetryanalysis．TheresultsshowedthatthecopolymerizationsbetweenOTandVAcwereexothermicandtheOCPsandsolutiontemperaturesfeaturedsimilarlydurin

5、gthecopolymerizations．TheFTIRspectraoftheproductsshowedwhethertheobtainedproductswererealcopolymersdependedonthefeedcomonomerratiosandthecopolymerizationmethods：onlywhenthefeedOTcontentwaslowerthan50m01％byonlyhomogeneoussolutionorinverseemulsioncopolymerizationmetho

6、ds．HigherOTfeedcontentwouldonlygetcopolymerswithverylowvinylacetatecontent．The6同济大学申请硕士学位论文UV-visiblespectrashowedthattherewerelongconjugativestructuresinthechainoftheproductsbyinverseemulsioncopolymerization．Thecopolymerizationyieldsalsohadacloselydependencyontheco

7、polymerizationmethodsandtheparticlesizeanditsdistributionoftheproductsdecreasedwiththelongerstirringtimeandthelowerfeedOTcontent．ThesolubilitiesofthecopolymerizationproductsimprovedtosomeextendcomparedtothoseoftheOThomopolymersandproductscopolymerizedbydifferentcopo

8、lymerizationmethodsshoweddifferentsolubilities：productsbydifferentcopolymerizationmethodswoulddissolveindifferentsolventsbuttheyalldissolv