简介:新对光反应变色bisphenoxynaphthacenequinone混合物,6,6素数-[1-methylethylidenebis(4,1-phenyleneoxy)]二度(5,12-naphthacenequinone)(1),被一个二拍子的圆舞方法综合,即,6的合成[4-(2-(4-hydroxyphenyl)异丙基)含苯氧基)从6-chloro-5的-5,12-naphthacenequinone(2),12-naphthacenequinone(3)和bisphenol--A,和在DMF/丙酮的化合物2的进一步的反应面对无水的碳酸钾和碘化钾混合了溶剂。粗略的产品在一种precipitate形式被获得并且能被再结晶容易净化。溶剂作文在第二步在猛抛的粗略的产品的收益上标记影响。(编辑作者摘要)3个裁判员。
简介:Withthebirthofgraphenewithfasnicatingproperties,noveltwo-dimensionalnanomaterialshaveobtainedconsiderabledevelopmentsinthelastdecade.Amongthem,BNnanosheetshavebeenintensivelyinvestigatedbecauseoftheirlargeelasticmodulus,highmelting-point,superbthermalconductivityandlargedirectbandgap,whichcanbeusedinultraviolet-lightemitter,
简介:Theeffectofthermalcyclingunderloadingonmartensitictransformationandtwo-wayshapememoryeffectwasinvestigatedforTi-49.8at.pctNialloy.ItisshownthatMsandMftemperatureincreasewithincreasingthenumberofcycles,whileAsandAftemperaturedecreaseduringthermalcycling.Thetotalstrainεtandpermanentstrainεpincreasewithincreasingappliedstressandnumberofcycles.Thetwo-wayshapememoryeffectcanbeimprovedbyproperthermalcyclingtrainingunderloading,whileexcessivelyhighappliedstressresultsinthedeteriorationofTWSME.Thereasonforthechangesinmartensitictransformationcharacteristicsandtwo-wayshapememoryeffectduringthermalcyclingunderloadingisdiscussedbasedontheanalysisofmicrostructurebyTEMobservations.
简介:在原处,有在硅石矩阵的柳酸(柳安)的铽建筑群的合成被一个二拍子的圆舞大音阶的第五音胶化过程做。有柳酸的铽建筑群在大音阶的第五音胶化被形成导出硅石胶化,并且由光刺激系列证实了并且红外线(红外)系列。作为与纯铽建筑群粉末相比,包含铽建筑群的硅石胶化展出它的典型排放并且为纯建筑群比那介绍更长的荧光一生。复杂包含硅石胶化的光性质被调查,与那些相比,两个,铽做了硅石胶化和纯复杂粉末。导致上述结果的原因也被讨论。(编辑作者摘要)7个裁判员。