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简介：Inordertoimprovetheflexibilityofpoly(propylenecarbonate)(PPC),poly(1,2-propylenesuccinate)(PPSu)wasusedtoplasticizePPCinabatchmixer.TheeffectsofPPSuonthemiscibility,thermalstability,mechanicalandrheologicalpropertiesoftheblendswereinvestigated.PPCwaspartiallymisciblewithPPSu.ItwasdemonstratedthatPPSudecreasedtheglasstransitiontemperatureandmeltviscosityofPPC,asshownintheDSCandrheologicalcurves.WiththeincreaseinPPSucontent,thePPC/PPSublendsshoweddecreasedtensilestrength,however,theelongationatbreakwasincreasedto1100%forthe70/30PPC/PPSublend.TheintroductionofPPSuprovidedanefficientandnovelplasticizationmethodtoextendtheapplicationareaofPPC.

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简介：我学习的最近的阶段报导了单个代理人的活动poly(自动数据处理核糖)聚合酶(PARP)禁止者在分散并且在BRCA变异的前列腺癌症。在前列腺癌症，et基因重新整理和PTEN的损失的二最普通的基因改变，在现出症状之前的潜的模型被连接了到增加的敏感到PARP禁止者。新兴的证据也建议PARP1在调停起一个重要作用雄激素受体(AR)和et基因重新整理的transcriptional活动。在这篇文章，在为变形前列腺癌症作为一个新治疗范例开发PARP基于禁止者的治疗的现出症状之前的潜的工作和早阶段的临床的审判被考察。

简介：Inthisstudy,apoly(etherblockamide)(Pebax1657)compositemembraneappliedforCO2capturewaspreparedbycoatingPebax1657solutiononpolyacrylonitrile(PAN)ultrafiltrationmembrane.Ethanol/watermixturewasusedasthesolventofPebaxandtheeffectsofethanol/watermassratiosandPebaxconcentrationonthepermeationpropertiesofcompositemembranewerestudied.Toenhancethecompositemembranepermeance,thegutterlayer,madefromreactiveaminosiliconecrosslinkingwithpolydimethylsiloxane(PDMS),wasdesigned.Theinfluenceofcrosslinkingdegreeofthegutterlayeronmembraneperformancewasinvestigated.Asaresult,aPebax/aminoPDMS/PANmultilayermembranewithhexaneresistancewasdeveloped,showingCO2permeanceof350GPUandCO2/N2selectivityover50.Theblendofpolyethyleneglycoldimethylether(PEG-DME)withPebaxascoatingmaterialwasstudiedtofurtherimprovethemembraneperformance.AfterbeingcombinedwithPEG-DMEadditive,CO2permeanceofthefinalPebax-PEG-DME/amino-PDMS/PANcompositemembranereached400GPUabovewithCO2/N2selectivityover65.

简介：Isotacticpoly(butene-1)(iPB)withsphericalmorphologywassynthesizedsuccessfullywithbulkprecipitationpolymerizationwithoutpost-treatmentoftheproducts.ThebulkprecipitationpolymerizationprocessmadeitpossibleforiPBtobeusedasgeneralplasticduetotheacceptabledecreasedcostcomparedwiththesolutionpolymerizationprocess.TheinfluenceofcatalystresiduesontheagingandthermalstabilityofiPBsynthesizedbybulkprecipitationpolymerizationmethodwasinvestigatedbygelpermeationchromatography,mechanicalperformancetesting,thermogravimetricanalysisandinfraredspectroscopicanalysis.CommercialiPBandthelab-madeiPBwithvariedcatalystresiduecontentswerestudied.TheresultsdemonstratedthatthecatalystresiduesplayedanimportantroleintheagingprocessoftheiPB.Apossiblemechanismofagingpromotionbycatalystresidueswasproposed.

简介：这份报纸的目的是报导纤维素nanocrystals(计算机数值控制)的增加的效果在上机械，热并且障碍性质(乙烯基白酒)poly，/chitosan(PVA/Cs)bio-nanocomposites电影通过扔过程的溶剂准备了。PVA/Cs/CNCs电影的描述以X光检查被执行衍射(XRD)，传播电子显微镜学(TEM)，扫描电子显微镜学(SEM)，thermogravimetric分析(TGA和DTG)，氧传播率(OTR)，和张力的测试。TEM和SEM结果证明在低装载层次，计算机数值控制在PVA/Cs矩阵同质地被驱散。在电影的张力的力量和模量分别地从55.1MPa增加了到98.4MPa并且从395MPa到690MPa，当计算机数值控制内容从0wt%去了1.0wt%时。PVA/Cs矩阵的热稳定性和氧障碍性质最好在装载的计算机数值控制的1.0wt%被提高。合并计算机数值控制达到的提高的性质能在各种各样的应用是有益的。

简介：Asupercriticalcarbondioxide(ScCO2)assistedphaseinversionwasdevelopedtoproducemicroporouspoly(vinylidenefluoride)(PVDF)membraneswhosemorphologycharacteristicsarisefrombothliquid-liquiddemixingandsolid-liquiddemixing(crystallization).ThisresultwasconfirmedbyFouriertransforminfraredspectroscopy(FTIR),fromwhichbothαandβcrystalswerefound.Asrevealedbycontactangleexperiment,thePVDFmembranespreparedviaScCO2assistedphaseinversionweremorehydrophobiccomparedwiththecontrolmembraneproducedviaconventionalimmersionprecipitationtechnique.Inparticular,thesamplewith15wt%PVDFpreparedat45°Cand13MPaexhibitedacontactangleof142°,whichwasmainlycausedbythemultilevelmicro-andnano-structure.Theeffectsofpolyethyleneglycol(PEG),polyvinylpyrrolidone(PVP)andlithiumchloride(LiCl)onthestructuresandcrystalformwereinvestigated.PVPpromotedtheformationofβphasecrystalform,whilePEGbooststheevolutionofαphase.LiClrestrainedthecrystallizationdegreeofPVDFmembraneunderScCO2.

简介：Anovelgrapheneoxidedopedpoly(hydroxymethylated-3,4-ethylenedioxythiophene)(PEDOT-MeOH/GO)compositefilmwassynthesizedandutilizedasanefficientelectrodematerialforsimultaneousdetectionofrutinandascorbicacid(AA).PEDOT-MeOH/GOfilmsweresynthesizedonglassycarbonelectrode(GCE)byafacileone-stepelectrochemicalapproachandwerecharacterizedbyscanningelectronmicroscopy,UV-Visspectroscopy,FTIRspectraandelectrochemicalmethods.ThenthePEDOT-MeOH/GO/GCEwasappliedsuccessfullyinthesimultaneousdetectionofrutinandAA.TheresultsshowedthattheoxidationpeakcurrentsofrutinandAAobtainedatthePEDOT-MeOH/GO/GCEweremuchhigherthanthoseatthetraditionalconductingpolymerPEDOT/GO/GCE,PEDOT-MeOH/GCE,PEDOT/GCEandbareGCE.Underoptimizedconditions,thelinearrangesforrutinandAAare20nmol/L-10μmol/Land8μmol/L-1mmol/L,respectively.Thedetectionlimitis6nmol/Lforrutinand2μmol/LforAA(S/N=3),whicharelowerthanthoseofthereportedelectrochemicalsensors.

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