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简介：ＡＳＹＮＴＨＥＳＩＳＯＦＴＥＴＲＡＭＥＴＨＹＬＥＴＨＥＲＯＦＲＯＳＭＡＲＩＮＩＣＡＣＩＤＢＥＮＺＹＬＥＳＴＥＲＹａｎＺＨＵＡＮＧ；ＺｏｎｇＲｕＧＵＯ；ＧｕａｎｇＺｈｏｎｇＹＡＮＧ；ＸｉａｏＴｉａｎＬＩＡＮＧ（ＩｎｓｔｉｔｕｔｅｏｆＭａｔｅｒｉａＭｅｄ...

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简介：Thenoveldicyanateesterresincontainingnaphthaleneunit(DNCY)wassynthesized,andcharacterizedbyFT-IR,^1H-NMR,^13C-NMRandelementalanalysis(EA),ThethermalpropertiesofDNCYresinwasstudiedbythermaldegradationanalysisataheatingrateof10℃/min^-1inN2andair,TheDNCYrdsinexhibitedbetterthermalandthrmal-oxidativestabilitythanbisphenolAdicyanate(BACY)resin.

简介：AuseofSulfonateesterasalinkerinsynthesisofω-aminoalkanolswasreported.Diolsweretetheredontopolystyrylsulfonylchlorideresin,yieldingsulfonateresins(2).Aftercleavedbydiethylamine,diisopropylamineandpropylaminerespectively,threeω-aminoalkanolswereobtained.

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简介：二种周期的芳基酉旨dimers被phthaloyl二氯化物的反应经由界面的polycondensation与bisphenols综合了。周期的dimers乐意地由把钠安息香酸盐用作开始者在melt经历anionic戒指洞聚合或copolymerization，生产线性、高分子的重量聚酯。在homopolymersP1，P2，和共聚物P12的周期的dimers的内容是13.7%，10.2%，2.9%，分别地它显示周期的dimers的戒指洞copolymerization可以推动周期的dimers和减少的变换在产生共聚物的周期的dimers的内容。而且，周期的dimers的戒指洞copolymerization的等温的chemorheology显示反应熔融的混合有低砍粘性和粘性在戒指洞聚合的起始的阶段慢慢地增加。

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简介：ＰＲＥＰＡＲＡＴＩＯＮＯＦＮ－ｔ－ＢＵＴＹＬＯＸＹＣＡＲＢＯＮＹＬ－Ｏ￣α－９－ＦＬＵＯＲＥＮＹＬＭＥＴＨＹＬＥＳＴＥＲＯＦＡＳＰＡＲＴＩＣＡＣＩＤ￥ＺｏｎｇＪｉｎＨＡＮ；ＺｈｅｎＫａｉＤＩＮＧａｎｄＱｉＫａｉＺＨＡＮＧ（ＢｅｉｊｉｎｇＩｎｓｔｉｔｕ...

简介：Inordertoinvestigatetheeffectsofmethylestermoietyonpolycyclicaromatichydrocarbons(PAHs)andNOxformationinbiodieselcombustion,thecombinedmodelsweredevelopedbasedondetailedmethylbutanoate(MB)oxidationmodelandn-butanemodel.Also,PAHsdetailedreactionmechanismandNOxformationmechanismwereaddedtothedetailedmodelstoformthecombinedmodels.Thecombinedmodelswereusedtocomparethecombustionofn-butaneandMBinashocktubesimulationtounderstandtheeffectsofmethylestermoiety.Theresultsindicatedthatcomparedwithn-butane,themethylestermoietyinMBleadstodifferentreactionpathways,moreCOandCO2formationandlessformationofPAHsprecursorssuchasethyleneandacetylene.Inaddition,abetterchemicalinsightintotheeffectsofmethylestermoietyonNOxformationwasgiven,whichwillhelptounderstandthecombustionprocessofbiodiesel.

简介：Poly[(alanino乙醇酉旨)0.67(glycino乙醇酉旨)0.33phosphazene(PAGP)被综合，并且electrospunPAGPnanofibers的形态学和直径被使用与改变象应用电压那样的重要处理变量扫描电子显微镜(SEM)的凉爽的领域排出物系统地评估，聚合集中，和周围的温度。PAGPnanofibers的平均直径与应用电压相反地成正比，但是随答案集中的增加增加了。更低的环境温度由于nanofibers粘著是相反的。

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简介：Afteroptimizationandoperationforhalfayear,the30kt/a2,2,4-trimethyl-1,3-pentadiolmono-isobutyrate(hereinafterabbreviatedasglycolester-12)unitconstructedbytheDynamic(Binhai)ChemicalIndustryCo.,Ltd.usingitsproprietarytechnologyhasreachedthedesigntargetonMay4,2013,withtheproductpurityreaching99.5%,

简介：Aim:Tostudypercutaneousabsorptionandmetabolismofketoprofenisopropylester(KPE)viaexcisednudemouse'sandmonkey'sskin.Methods:Excisedskinwaspreparedbysurgicalexcisionandenzymedigestion.Sideby-sidediffusioncellswereusedforinvitropermeationstudies.TheconcentrationsofKPEanditsmetaboliteinsampleswereassayedbyHPLC.Results:AllKPEpenetrationthroughwholethicknessskinandstrippedskinwasmetabolizedtoketoprofen(KP).theconcentrationofwhichinthereciiversolutionincreasedlinearlywithtime.Astothenudemouseskin.thesteady-statefluxofKPthroughwholethicknessskinwas2.5timesthatofKPEthroughthewhloethicknessskin,buttheKPandKPEremaininginthewholethicknessskinafterthefinishingofKPEpenetrationwas22.2timesincomperedwiththeKPremaininginthewholethicknessskinafterthefinshingofKPpenetration.TherateofformationofthesteadystateKPfromKPEthroughtdermiswassignificantlylowerthanthatofKPEthroughthewholethicknessskin.Inhemonkeyskin,therateofformationofthesteady-stateKPfromKPEthroughthewholethicknessskinwas0.7timesthatfromKPEthroughstrippedskin.TheKPandKPEremaininginthewholethicknessskinafterthefinishingofKPEpenetrationwas2.0timethatinthestrippedskinafterthefinishingofKPEpenetration.Therateoffornationofthesteady-stateKPfromKPEthroughdermiswaslowerthanthatfromKPEthroughthewholethicknessskinandthestrippedskin.theKPremainingindermisafterthefinsihingofKPEpenetrationwasalsosignificantlylowerthantheKPremaininginthewholethicknessskinandthestrippedskinafterthefinishingofKPEpenetration.Conclusion:KPestersareofbenefittoimporovethelocalactionofKP.andskinesterasemetabolismmainlydevelopsintheepidermis.

简介：Aseriesoffunctionalizedionicliquids(ILs)containingester-groupweresynthesizedandtheirtribologicalpropertiesaslubricantsforsteel-steelcontactwerestudiedandcomparedwithanon-functionalizedionicliquidandperfluoropolyethers(PFPE).ThemorphologyandchemicalcompositionofthewornscarswereanalyzedbyscanningelectronmicroscopyandX-rayphotoelectronspectroscopy,respectively,andthepossiblelubricationmechanismofILswasdiscussed.Asaresult,allILsdemonstratedabetterlubricityandamuchhigherload-carryingcapacitythanPFPEusedaslubricantsforthesteel-steeltribomatessystem.ThefunctionalizedILswithester-groupshowedslightlyworsefrictionreducingabilitythantheirnonfunctionalizedcounterpartsatrelativelylowerloadsowingtotheirhigherviscosity,butthenexhibitedbetterantiwearabilitybecausetheestergrouptheycontainedhadnotonlyphysicalbutalsostrongchemicalreactionswiththefreshlyexposedsteelsurfaceandformedchemicaladsorptionboundaryfilmsonthewornsurfaceduringfrictionprocess.Underhighloads,sometribochemicalreactionstookplacebetweentheactiveelements,suchasfluorinewhichwerereleasedfromtheILs,andfreshmetalsurfacesofrubbingpairstoformtheadmixturereactionfilms,whichweremainlycomposedofferricfluoridemixedwithferricoxide,leadingtolowerfrictioncoefficientsandgoodwearresistance.

简介：瞄准：在老鼠睾丸在香烟烟暴露以后显示出氧化压力并且评估咖啡酸phenethyl酉旨(披肩)的效果。方法：21只老鼠被划分成三组七。在组的动物我被用作控制。在组II的老鼠仅仅暴露于香烟烟(4x30min/d)并且在组III的老鼠暴露于香烟烟并且收到了披肩(10micromol/kgxd)的每日的腹膜内注射。在60天以后，所有老鼠被打死并且氮的氧化物的层次(没有)并且象superoxide-dismutase，过氧化氢酶和谷胱甘肽过氧化物酶和malondialdehyde的水平(GSH-Px)那样的抗氧化剂酶与spectrophotometric在老鼠的阴囊的纸巾被学习。结果：当时，在组II过氧化氢酶和superoxide-dismutase活动有重要增加在组III在披肩管理以后与两个的控制，而是层次相比减少了。GSH-Px活动在组II被减少，但是披肩在组III在GSH-Px活动引起了举起。在组的GSH-Px的层次之间的差别我和组II是重要的，但是组II和III之间的差别不是重要的。在烟暴露以后的malondialdehyde的举起是重要的，披肩引起了减少到不对控制组统计上不同的水平。显著地增加的水平被在没有层次之间的披肩管理和差别不在我和III是的组在到烟的暴露以后颠倒统计上不足道。结论：到在在老鼠睾丸的氧化的酶层次的香烟烟原因变化的暴露，而是披肩罐头颠倒这些有害效果。

简介：二个Schiff底转移忍受morpholine戒指的方面链的金属建筑群，这被报导了被综合并且描绘，并且有一样的二建筑群基于代理人但是不同金属离子在这份报纸在p-nitrophenylpicolinate的催化水解作用被用作假装的hydrolase。PNPP催化水解作用的机制被结果建议并且支持光谱分析和运动计算。一个运动数学模型，适用于计算运动并且PNPP催化水解作用的热力学参数，在建议的机制的基础上被建立了。学习的结果证明二建筑群在PNPP催化水解作用的PNPP催化水解作用，和率举办一项好催化活动随缓冲区解决方案的pH值的增加被增加并且由建筑群的金属离子的极化效果影响了。

简介：Anewhexaketideacidesterifiedbythe17-hydroxylgroupof16,17-dihydroxycyclooctatin,namely17-[16,17-dihydroxycyclooctatinyl]-hexaketideester(1),amemberofthegroupofrarebacterialditerpeneswithafused5-8-5ringsystemwasisolatedfromstrainStreptomycessp.SR107.Thestructurewasdeterminedonthebasisofitsspectraldata(~1HNMR,~(13)CNMR,~1H-~1HCOSY,HSQC,HMBC,NOESY,IRandHR-ESI-MS).Theantibacterialactivitywasalsoevaluatedinthispaper.