共查询到10条相似文献,搜索用时 15 毫秒
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一类活性极高的高分子表面活性剂 总被引:11,自引:0,他引:11
一类活性极高的高分子表面活性剂范仲勇,李娜,吴大诚(四川联合大学轻纺学院,成都,610065)ZhaohuiSu,S.L.Hsu(DepartmentofpolymerScience&Engineering,UniversityofMassachus... 相似文献
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《中国化学快报》1995,(7)
STUDYONSYNTHESIS,CHARACTERIZATIONANDCATALYSISOFPILLAREDANIONCLAY(Ⅲ)──SYNTHESISOFZnAl-BW_(11)O_(39)Z(H_2)~(n-)ThanksforthesupportofFoundationofCECandtheopenlabofHydrothermalSynthesisinJinnUniversityeddifferentkindsoftriheteropolyoxometalate(TH'POMs)totheZnAIlayeredclays,usingtheesterificationofn-butylalcoholandaceticacidasprobereaction.andfoundthatthepillaredcompoundsweremoreactiveandselectivethanthesolidacidcatalystssuchasacidicion-exchangeresinsl4].Onthebasisofpreviouswork.wenowencapsulatetriheteropolyoxome 相似文献
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《中国化学快报》1996,(1)
ThisinveshgationwassupportedbyTheNationalNaturalScienceFoundationofCllilla.geniusweret ̄ParentinUV,sothe2,4-etsand2,4tranS-isomerswereregardedasasingleconstituent(amixtUreof2-epimers)inanearlierreport.WesuccessfullyseattedisoaunonareticindiacetatestOtWoiSOmers,2,4ets-and2,4 ̄-isoannonareticindiacetatesbypreparativeTLCfromA.reticubo.OneOfthePair,2,4-ets-isoannonareticin,isanewnaturalproductandanother,2,4-tranS-isoannonarehcinisaknownbullatacinone.3ComPOundIwasobtainedcrystalline,mp.72-73"C.TheFAB-MSgavethePea 相似文献
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ZHAO Bo a CAO Yang b LANG Jian Ping c 《结构化学》1999,18(5)
1 INTRODUCTIONCurrently,consistenteffortshavebeenmadetotheinvestigationoforganicnonlinearoptical(NLO)materials〔1〕.Someofcinnamylideneacetophenonederivativeshavefairlystrongsecondharmonicgeneration(SHG)andthereforearepotentialusefulinNLOfields.Durin… 相似文献
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化学文摘社和国际科技信息检索网 总被引:1,自引:0,他引:1
化学文摘社和国际科技信息检索网张立群(美国化学文摘社,ChemicalAbstractsService,P.O.Box3012.ColumbusOH43210,USA)张曼平(青岛海洋大学化学系,266003)从1907年建立以来,化学文摘社(CAS... 相似文献
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Lin Yu-Juan 《结构化学》1995,(1)
StructureStudiesonNewTypesofMacrocyclicCompoundsPartV.CrystalStructureofNickel(II)Complexof5,12-Diphenyl-7,14-dimethyl-1,4,8,... 相似文献
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《中国化学快报》1996,(11)
TOwhomco ̄ndenCeshouldbeaddreSSedBothMSGLSandCDcontainhydronylgroupsonadjacentcanonatoms.IthasbeenknownthatpolyhydroxycompoundscanformironiccomplexeswithboraxIS].B}'addingboraxtothebuffercontainingor-CD,thesepboonofMSGLSti.asimproveddr ̄cally.asshowninFig.1.ImprovementofselectivitywaspresUmabl}.duetocomplexationoftheMSGLSwithboraxanda-CDinthesolution.OurobservationsshowedthattheconcentrationofboraxandthePHinthebaerarecriticalfactorsthechngtheresoluhonofMSGLS.DecreasingtheconcentrationOfboraxfrom100to50amoks. 相似文献
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AStudyonMolybdeniteElectronicStructureLONGXiang-yunandWANGFeng-zhen(Dept.ofChem.,CentralSouthUniversityofTechnology,Changshah... 相似文献