简介：Aseriesofliquidcrystallinepolymerswithtwo-dimensionalmesogenicunitsweresynthesizedbysolutionpolycondensationatlowtemperature.Allthepolymerswereliquidcrystalline.ThemeltingtemperatureT_m(exceptthatwithsubstituentofmethoxy)andtheclearingtemperatureT_iofthepolymerschangeregularlywithvaryingofthelengthofthealkylsubstituentgroups.

简介：双人脚踏车催化系统，由乙烯二度(indenyl)组成有二不同cocatalysts，alkylaluminum(diethylaluminium氯化物或trialkylaluminum)和methylaluminoxane的锆二氯化物，在作为唯一从乙烯准备分叉的聚乙烯被采用单体。催化系统racet(Ind)2ZrCl2/AlEt2Cl/MAO展出了高加入(29.0/1000C)。oligomerization和copolymerization反应在双人脚踏车调节催化系统，以及不同cocatalysts，在催化活动和获得的聚合物的性质有效果例如融化温度，crystallinity，分子的重量和分子的重量分发。而且，oligomerization反应条件是在改变聚乙烯的性质和结构的主要因素。

简介：Inthispaper,twokindsofPS-PTCsweresynthesizedusingdifferentmethodsbyintroducingcinchonineandquininetothepolymersupport.TheircatalyticpropertiesforthealkylationofN-diphenylmethyleneglycinet-butylesterwerealsocompared.

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简介：Two-dimensional(2D)materialshavebeendemonstratedtoexhibituniquepropertiesoriginatingfromits2Dnature.Inrecentyears,theconstructionof2Dmaterialshasbecomeatopicofgreatinterest.Thisarticlesummarizestherecentadvanceof2Dsupramolecularorganicframeworks(SOFs)whicharehomogeneouslyconstructedinsolutionphasethroughself-assemblyofrationallydesignedbuildingblocks.These2DSOFsaresolubleandstillmaintainstablenetworkstructuresinsolutions,whichexhibituniquenessnotonlyinstructuresbutalsoinproperties.Inthisconcisereview,theSOFs-relatedbackgroundisbrieflyintroducedfirstly,followedbyoutliningtheresearchprogressofsoluble2DSOFsfromtheperspectiveofmonomerdesign,assembly,andstructuralcharacterization.Thearticleendswithapersonaloutlookonthefuturedevelopmentofthisnewclassofsupramolecularpolymers.

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