简介:自己组装在自然占优势并且从自然学习将导致biofunctional材料。由弹力素的蛋白质启发了,我们在忍受重复VPGAG的肽的弹力素的超分子的hydrogel上在这研究报导了。粘弹性性质,nanostructures的形态学,并且在自我装配的nanostructure的芳香的叠被电流测定,传播电子显微镜(TEM),和荧光显微镜分别地描绘。gelator的biocompatibility被MTT试金也证明。尽管超分子的hydrogel没能展出象弹力素一样的高弹性,thixotropichydrogel可能在房间文化的领域里为应用有潜力,控制药版本,等等。
简介:Crystalandphasemorphologiesandstructuresdeterminedbyself-organizationofcrystalline-amorphousdiblockcopolymers,crystallizationofthecrystallizableblocks,andvitrificationoftheamorphousblocksarereviewedthroughasystematicstudyonaseriesofpoly(ethyleneoxide)-b-polystyrene(PEO-b-PS)diblockcopolymers.Onthebaseofcompetitionsamongthesethreeprocesses,molecularandsupramolecularorderinginconfinedenvironmentscanbeinvestigated.Inaconcentration-fluctuation-induceddisordered(DCF)diblockcopolymer,thecompetitionbetweencrystalli-zationofthePEOblocksandvitrificationofthePSblocksismomtoredbytime-resolvedsimultaneoussmallangleX-rayscattering(SAXS)andwideangleX-raydiffraction(WAXD)techniques.InthecaseofTc
简介:电容表演poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate)(PEDOT-PSS)超分子的hydrogels系统地被调查了。材料显示出67F/g的一个特定的电容并且在周期的voltammogram大小象5000mV/s一样高以扫描率显示优秀的率能力,由好周期稳定性伴随了。根据microscale形态学,特定的区域和电的传导性的大小,为电气化学的性质的改进的机制被讨论并且归功于到hydrogels的新奇多孔的微观结构和僵硬PEDOT和软PSS部件的合作效果。而且,polyaniline(平底锅)通过一个界面的聚合过程与PEDOT-PSShydrogels被加重,赋予hydrogel材料以以5000mV/s的扫描率的160F/g的一个更高特定的电容。这个工作的意义躺在一个新奇方法的示范解决在电气化学的应用进行聚合物的问题。
简介:Two-dimensional(2D)materialshavebeendemonstratedtoexhibituniquepropertiesoriginatingfromits2Dnature.Inrecentyears,theconstructionof2Dmaterialshasbecomeatopicofgreatinterest.Thisarticlesummarizestherecentadvanceof2Dsupramolecularorganicframeworks(SOFs)whicharehomogeneouslyconstructedinsolutionphasethroughself-assemblyofrationallydesignedbuildingblocks.These2DSOFsaresolubleandstillmaintainstablenetworkstructuresinsolutions,whichexhibituniquenessnotonlyinstructuresbutalsoinproperties.Inthisconcisereview,theSOFs-relatedbackgroundisbrieflyintroducedfirstly,followedbyoutliningtheresearchprogressofsoluble2DSOFsfromtheperspectiveofmonomerdesign,assembly,andstructuralcharacterization.Thearticleendswithapersonaloutlookonthefuturedevelopmentofthisnewclassofsupramolecularpolymers.
简介:在一封初步的信(四面体Lett。2010,51,188),我们报导了二个新基于一种肺结核特效药的四倍的结合氢的主题,这是,二monopodal(1a和1b)和五dipodal(2a,2b和3a3c)从在烃的dipodal主题的超分子的聚合物和泡的芳香的一种肺结核特效药衍生物,和形成。在这份报纸,我们在场有他们在水的媒介的自我装配的行为上的一个重音的这些结合氢的主题的性质上的一幅完整的图画。SEM,AFM,TEM并且荧光灯显微图显示所有dipodal混合物也在极的甲醇和水甲醇(多达50%水)形成泡混合物。控制实验证明1b不在一样的媒介形成泡。到dipodal混合物的溶液的1b的增加禁止后者形成泡的能力。在高集中,3b和3c另外gelate分离溶剂,包括的烃,酉旨,甲醇,和甲醇水混合。集中依赖者SEM调查表明3b和3c的泡熔化形成胶化和3c罐头de总数的胶化reversibly形成泡。
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简介:Onenovelorganic-inorganichybridsupramolecularassemblies|(NDPA)(18-crown-6)]2+(DMA)+·3ClO4-(1),hasbeensuccessfullyconstructedthroughtheprominentstrategiesofcrystalengineering(NDPA=N,N-dimethyI-1,4-phenylenediamine,DMA=dimethylamine),andcharacterizedbyIR,powderXRDandsinglecrystalX-raydiffraction.Inthestructure,thesupramolecularorganiccationsandinorganicClO4-anionsarearrangedalternatelyandlinkedbyN-O…Hhydrogenbonds.ItisworthytonotethattheClO4-arelinkedtoformone-dimensionalinorganicchainthroughstrongNH…Ohydrogenbondsalongb-axis.Thereisnodistinctdielectricanomalyinthetemperaturedependentandfrequency-dependentdielectricconstantcurves,suggestingthatnophasetransitionexistswithinthemeasuredtemperaturerange(120-420K).Therelativedisplacementofcationsandanions,theturnedpolarizationofmolecularelectricmomentandmacrocyclicmoleculerotatorarethemainfactorstodeterminethetrendofdielectricconstant.