简介：2'-methacryloxy-3α,7α12α-trimethacryloylcholicacidethylester(CAGE4MA)hasbeenpreparedfromcholicacid.Photo-polymericresinswerepreparedfromCAGE4MA.2,2-bis[4-(2-hydroxy-3-methacrylyloxypropoxy)phenyl]propane(bis-GMA)wasusedforcomparison,triethyleneglycoldimethacrylate(TEGDMA)wasusedasdiluent.Thepolymerizationwasinitiatedbycamphoroquinone(CQ)/N,N-dimethylaminoethylmethacrylate(DMAEMA)system.TheconversionofCAGE4MAwas39%whenthereactiontimeis60s,whichislowerthanbis-GMAandTEGDMA.TheswellingvalueofCAGE4MAresinwas0.41%indistilledwater,whichismuchlowerthanthoseofbis-GMAresin(2.04%)andTEGDMAresin(4.77%)underthesameconditions.CopolymersfromCAGE4MAandTEGDMAhavebeenprepared.WiththeincreaseofTEGDMAinmixture,thedegreeofconversionofCAGE4MAandswellingvalueincreased.Theswellingvaluesofphotocuredresinsin0.1mol/LHClwerealsomeasured.

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简介：Threepolymericadsorbentswithhydrogenbondingacceptors,methylamine,N-methyl-acetamideandaminotri(hydroxymethyl)methanemodifiedresinsaresynthesizedfromchloromethylatedX-5resin.AdsorptionisothermsofphenolandtheophyllineontothethreemodifiedresinsandtheoriginalX-5resinfromaqueoussolutionaremeasured.TheresultsshowthatadsorptionofcompoundswithhydrogenbondingdonorontomethylamineandN-methylacetamidemodifiedresinsisenhancedascomparedwiththatontoX-5resin,andadsorptionmechanismbetweentheadsorbentsandtheadsorbatesismainlybasedonhydrogenbondingandhydrophobicinteraction.Whileadsorptionofcompoundswithhydrogenbondingdonorontoaminotri(hydroxymethyl)methanemodifiedresinisloweredascomparedwiththatontoX-5resin,andadsorptionmechanismbetweentheadsorbentandtheadsorbatesismainlybasedonhydrophobicinteraction.

简介：Highqualitypoly(5-cyanoindole)(P5CI)filmswereelectrosynthesizedbydirectanodicoxidationof5-cyanoindoleonstainlesssteelsheetinthemixedelectrolytesofborontrifluoridediethyletherate(BFEE)anddiethylether(EE)(byvolume1:1)+0.05molL~(-1)Bu_4NBF_4.Thefilmformedcanbepeeledofftheelectrodeintofreestandingfilms.TheadditionofEEintoBFEEcanimprovethesolubilityofmonomer.P5CIfilmsobtainedfromthismediumshowedexcellentelectrochemicalbehaviorwithconductivityof10~(-2)Scm~(-1).Structuralstudiesshowedthatthepolymerizationof5-cyanoindoleoccurredatthe2,3position.As-formedP5CIfilmswerethoroughlysolubleinstrongpolarorganicsolventdimethylsulfoxide(DMSO)whilepartlysolubleintetrahydrofuran(THF)oracetone.FluorescencespectralstudiesindicatedthatP5CIwasagoodblue-lightemitter.

简介：Polymer-supportedRCpCpTiCl2(Cp=η^5-C5H4;RCp=η^5-RC5H4)havebeenpreparedandreducedbyi-C3H7MgBrinsitu，thenusedincatalyticisomerizationof1,5-hexadiene.Theisomerizationof1,5-hexadieneleadstoamixtureofcyclicandlinearproducts.Theratioofcyclictolinearproductdependsonthenatureofthesupporterandthesubstituentonthecyclopentadienylring.Theformercontributesthemost,forexample,silicasupportedCp2TiCl2gavecyclic-linearratioof99/1,whileforpolymer-supportedCp2TiCl2species,linearcompoundsarethemajorproductsandtheratioofcyclictolinearproductchangeswithdifferentRgroupsonthecyclopentadienylring.

简介：Linearpolysiloxaneswithpendantbenzo-15-crown-5moietieshavebeensynthesizedfrom3′-or4′-allylbenzo-15-C-5viahydrosilylationofmethyldichlorosilane,followedbypolycondensationwithsilanol-terminatedpolydimethylsiloxane.Itwasfoundthatthepolysiloxanescouldbeusedascarriersinbulkliquidmembranetotransportions.Factorsinfluencingtransportratehavebeeninvestigated.

简介：Ourobjectivesweretodevelopanewchemicalmethodforthepolymerizationofpyrrole.CuCl2dissolvedinC2H5OHsolventisprimarilyusedfortheinitiationpolymerizationofpyrrole.ThepolymerswithdifferentyieldandconductivitywereobtainedbyraringtheinitialconcentrationofCu2+.TheinitialconcentrationsofCu2+variedfrom1.2×10-4moleto6.48×10-3moleCu2+with2.16×10-2molepyrrole.Thepolypyrroleobtainedwascharacterizedwithelementalanalyzer,XPS,IRspectroscopy,Four-pointprobeandSEM.

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简介：在这个工作，综合体新热地稳定(amide-imide)poly，有在n丁基甲基imidazolium溴化物的悬挂的2-pyridyl-1,3,4-oxadiazole单位的s作为反应媒介被报导了。新二羟基的酸从肼的反应被导出，2-(5-(3,5-diaminophenyl)-1,3,4-oxadiazole-2-yl)pyridine(POBD)，和trimellitic酸酐。聚合物在丁基甲基imidazolium溴化物从diimide二酸(DIDA)和不同的芳香的肼的反应被准备，[bmim][Br]，面对triphenyl亚磷酸盐(TPP)作为没有需要任何额外的部件的压缩代理人。poly准备了(amide-imide)s被FTIR描绘，元素的分析，并且通过模型混合物的合成。准备聚合物是可溶的在极并且aprotic溶剂例如DMF，DMSO，NMP和DMAc。聚合物答案的固有的粘性在在0.125g/dL的集中在集中的H2SO4测量在的0.521.33dL/g的范围(25