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1、湘潭大學碩士學位論文UV固化中硫鎓鹽光引發(fā)劑的合成與研究姓名：樊梅云申請學位級別：碩士專業(yè)：有機合成指導教師：陽年發(fā)20050401湘潭大學2005屆有機化學專業(yè)碩士論文AbstractRecently,cationicUVcuringhasbecomeawell-establishedmethodinthecoating,inksandadhesivesindustries.PhotoinitiatorisabasiliccompositionofUV-curablesystem,anditisalsoimportanttoaccelerateph
2、otoinducedcationicpolymerization.Triarylsulfoniumsaltshavebeenstudiedandappliedwidely.However,thesimpletriarylsulfoniumsaltsalreadyreportedexistasameproblemthatistheirmaximumabsorptionwave-lengthdoesnotmatchwiththelightsourceappliedinbusinesses.Usuallytherearetwokindsofmethodst
3、ochangeitsspectrumcharacteristic.Oneistoappendsensitizer,theotheristoextendconjugateddegree.Akindnoveltriarylsulfoniumsaltascationicphotoinitiatorwasdesignedandsynthesizedaccordingtothesecondmethod.Fivesingle-triarylsulfoniumsaltsandtwodouble-triarylsulfo-niumsaltsweresynthesiz
4、ed.Thelatterhavemoreextensiveconjugateddegree.Wefoundagoodmethodtopurifytheproducts,andthepureproductwastestifiedbyIRandNMR.Wehavestudytheirspectrumcharacteristic.Theresultshowsthatthemaximumabsorptionwavebandis270~303nm,andtheEinsteinshiftdegreeofthedouble-sulfoniumsaltismoreg
5、reatthanwhichofthesingle-sulfoniumsalt.Bytestingtheperformanceofeachpureproduct,wefoundthattheycanallinitiatethecationicpolymerizationofepoxidesasmonomers.Moreover,thecompositionisexcellentincompatibility,tramsparencyandcurabilityandgivesacuredcoatofexcellentglossandoflesssmell
6、.Theyhavebettersolubilityinfamiliarorganicsolventsandmonomers.Becausethereactionroutethatwedesignedissimpleandthereactionconditionismild,thiskindphotoinitiatorhasagoodpracticalprospect.3湘潭大學2005屆有機化學專業(yè)碩士論文Keywords:UVcuring;cationicphotoinitiatord;triarylsulfoniumsalts4湘潭大學2005屆
7、有機化學專業(yè)碩士論文第一章文獻綜述1.1前言UV（紫外光）固化和EB(電子束)固化統(tǒng)稱輻射固化。UV固化材料是UV固化的涂料、油墨和黏合劑等材料的統(tǒng)稱，UV固化材料的研究和開發(fā)不僅豐富了輻射化學、有機化學、高分子化學和物理等相關(guān)學科的內(nèi)容，也不僅豐富了生產(chǎn)和日常生活必需品的種類，同時還能滿足高技術(shù)領(lǐng)域，尤其是微電子材料加工[1]的特殊要求，促進了高新技術(shù)的進步。UV固化涂料是UV固化技術(shù)應用最主要的一部分，近年來，隨著現(xiàn)代科技的高速發(fā)展，為滿足全球性的環(huán)境保護的要求，必須限制涂料中揮發(fā)性有機物的排放，使得紫外光固化技術(shù)的研究開發(fā)和應用出現(xiàn)了日新月異、
8、迅猛發(fā)展的良好勢頭。從上世紀60年代末到80年代末，世界應用輻射固化技術(shù)（其中UV固化占90％以上）年平均增
