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ID:37350313
大小:6.00 MB
页数:138页
时间:2019-05-22
《芳基六氟异丙醇的合成及其应用研究》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、南京理工大学博士学位论文芳基六氟异丙醇的合成及其应用研究姓名:戴燕申请学位级别:博士专业:化学工程与技术指导教师:吕春绪20100624AbstractInthisdissertation,aresearchhasbeenmadeOilthepreparationandapplicationof2-aryl-1,1,1,3,3,3一hexafluoro-propan-2-ols.Anumberofuseful2-aryI-1,l,l,3,3,3一hexafluoro-propan-2·ols,suchas2一(4一amino-phocy
2、l)一1,1,l,3,3,3-hexafluoro-propan-2-ol,bisphenolAF,2-(4-hydroxy-phenyl)-1,1,1,3,3,3-hexafluoro-propan-2一elWerepreparedusingHFA’3H20asfluorine·containingbuildingblocks.Theinfluencefactorsoftheyieldandselectivitywereinvestigated.TheresultsshowedthatPEG200一DAILandNb205bothwe
3、rehigh-efficio饥tandgreencatalystforthepreparationof2-(4-amino-phenyl)-1,1,1,3,3,3-hexafluoro-propan·2-01.Bysimplesep—arationPEG200一DAILandNb20scouldbe他一utilizeduptofivetimesonlywithalit-dedecreaseinactivity.BisphenolAFcouldbesynthesizedinatmospherewithmethanesulfonicacid
4、ascatalyst.Insynthesisof2-(4-hydroxy-phenyl)·l,1,1,3,3,3·hexafluoro-pro—pan-2-ol,microwaveheatingcouldshortenthereactiontimemarkedlyfrom35hinco-nvoctionalheatingto6h.Sevennovelfluorine—containingSchiff-bascsworesynthesizedfrom2-(4-amino—phenyl)-1,1,1,3,3,3-hexafluoro-pro
5、pan一2一olandbenzaldehydes.Compared谢tllconventionalprocess,solid—solidsynthesisownedmanyadvantages:simplicityinprocessandhandling,lowcost,reducedpollution.卫1eyiddsofSchiff-baseswereincreasedfrom7l%.87%t098%一99%,butthereactiontimeWereshortenedfrom90-240mintolO·50min.Besides
6、that,morethantenimportant2-aryl-1,1,1,3,3,3-hexafluom-propan-2-ols,suchasbenzotriazoles,azobcnzeneswereobtainedandcharacterized.Threepreparedfluorine—containingboczotriazolesWereappliedasultravioletabsorbents.Theresultsshowedthatthethreefluorine—containingbenzotriazolesa
7、llhavestrongerabsorptionpeakin280—380hm,furthermore,theirlightstabilityandthermalstabilityhadobviouslyenhancedcomparedwiththeboczotriazolewithoutC(CF3hOHchemicalgroup.Thethreepreparedfluorine-containingbo饥zotriazolesalepotentialultravioletabsorbents.Keywords:hexafluoroac
8、etone,bisphenolAF,benzotriazole,ultravioletabsorbent,synthesis,Schiff-bases,microwave,2一(4一amino-phcnyl
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