检索结果-南通市图书馆

Preface: Special Topic on Metal-Organic Frameworks(MOFs)

在线全文

学校读者我要写书评

暂无评论

Science China Chemistry 2016年第8期59卷 927-928页

作者： Xian-He Bu jing-lin zuo College of Chemistry Nankai University Tianjin 300071 China Department of Chemistry Nanjing University Nanjing 210093 China

Metal-organic frameworks, MOFs, are coordination networks with organic ligands and voids. At the fundamen- tal level, MOFs epitomize the beauty of chemical structures and the power of combining organic and inorganic chemistry, two disciplines that are often regarded as disparate. MOl：s have recently emerged as an extensive class of crystalline materials with ultrahigh porosity and internal surtace areas.

关键词：金属有机骨架专题晶体材料有机配体化学电源化学结构无机表面

Dynamic polymeric materials based on reversible B–O bonds with dative boron–nitrogen coordination

在线全文

学校读者我要写书评

暂无评论

SmartMat 2023年第3期4卷 33-55页

作者： Zi‐Han Zhao Cheng‐Hui Li jing‐lin zuo State Key Laboratory of Coordination Chemistry School of Chemistry and Chemical EngineeringNanjing National Laboratory of MicrostructuresCollaborative Innovation Center of Advanced MicrostructuresNanjing UniversityNanjingChina

To minimize the environmental pollution caused by polymeric waste,materials based dynamic chemistry have attracted extensive attention around the *** dynamic covalent bonds or noncovalent interactions have been employed to design multifunctional polymers with recyclability,reprocessablility,and *** them,polymers based on reversible boron–oxygen(B–O)bonds have been widely investigated because of their unique ***,lots of scientists have demonstrated that the combination with boron–nitrogen(B–N)coordination can effectively accelerate the dynamicity as well as enhance the stability of B–O ***,numerous polymers containing dynamic B–O bonds with dative B–N coordination have been designed and synthesized in recent *** polymers exhibit excellent versatility and great potential for diverse applications such as biosensors,battery electrolytes,and artificial *** review provides an overview of the comprehensive influence of dynamic B–N coordination chemistry on B–O bonds in organoboron species and highlights the developments in the area of constructing boron‐containing polymeric materials with this interesting *** design guidelines,existing challenges,and future perspectives in this burgeoning field are discussed and proposed.

关键词： B–N coordination B–O bond dynamic polymeric materials reprocessable self‐healing

A Fast and Room-temperature Self-healing Thermal Conductive Polymer Composite

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Journal of Polymer Science 2021年第10期39卷 1328-1336,I0008页

作者： De-Wei Yue Hong-Qin Wang Han-Qing Tao Peng Zheng Cheng-Hui Li jing-lin zuo State Key Laboratory of Coordination Chemistry School of Chemistry and Chemical EngineeringNational Laboratory of MicrostructuresCollaborative Innovation Center of Advanced MicrostructuresNanjing UniversityNanjing 210023China

Thermal conducting materials may be damaged during long-term use,resulting in the increase of thermal resistance and therefore inefficient heat *** introduction of self-healing ability may solve this problem,but the realization of fast and room-temperature self-healing in thermal conducting composites is quite ***,we choose a flexible poly(dimethylsiloxane)polymer material(PDMS-COOH)as the matrix and graphene nanosheets as the thermal conductive filler to prepare a new kind of thermal conductive polymer composite(PDMS-COOH-CG)that can quickly self-heal at room *** thermal conductivity of PDMS-COOH-CG10 with 10%of graphene content is 0.48 W·m^(-1)·K^(-1),which is 16 times that of PDMS-COOH(0.03 W·m^(-1)·K^(-1)).At room temperature,self-healing efficiency of PDMS-COOH-CG10 based on tensile strength can be 53.8%for 30 s and 84.6%for 24 *** infrared thermal imaging dipicted that after 2 min of self-healing at room temperature,the thermal conduction temperature near the damage was basically restored to the level of the pristine sample.

关键词： Self-healing Thermal conductive Infrared thermal imaging

Efficient circularly polarized photoluminescence and electroluminescence of chiral spiro-skeleton-based thermally activated delayed fluorescence molecules

在线全文

学校读者我要写书评

暂无评论

Science China Chemistry 2022年第7期65卷 1347-1355页

作者： Yi-Pin Zhang Shi-Quan Song Meng-Xi Mao Cheng-Hui Li You-Xuan Zheng jing-lin zuo State Key Laboratory of Coordination Chemistry Jiangsu Key Laboratory of Advanced Organic MaterialsSchool of Chemistry and Chemical EngineeringNanjing UniversityNanjing 210023China MaAnShan High-Tech Research Institute of Nanjing University Maanshan 238200China

Chiral thermally activated delayed fluorescence(TADF) molecules showing circularly polarized luminescence(CPL) have great potential in 3D displays. However, the relationships among CPL property, device performance and molecule structure are still not clear. In this article, we develop a strategy to promote dissymmetry factors without sacrifice in device performance and study the impact of molecule structures towards CPL property. Three novel TADF enantiomers are synthesized and studied.(R/S)-SCN with diminutive cyano group as an acceptor shows dissymmetry factor |gPL| ≈ 1.4×10^(-3) and noticeable organic light-emitting diode(OLED) performances with a maximum external quantum efficiency(EQEmax) of 23.0%. For(R/S)-SPHCN, the prolonged electron withdrawing group benzonitrile enhances |gPL| up to 3.6×10^(-3) with decreased device EQEmaxof 15.4%. By further replacing benzonitrile with(trifluoromethyl)pyridine, the enantiomers of(R/S)-SCFPY show similar |gPL| factors of 3.5×10^(-3) and device EQE_(max)up to 23.3%, which represents the highest efficiency among sprio-type TADF materials based OLEDs. Furthermore, the OLEDs also show obvious circularly polarized electroluminescence with gELfactors of-1.4/1.8×10^(-3),-3.6/3.6×10^(-3) and-3.7/3.6×10^(-3), respectively. These results indecate by delicate functional group engineering, high g factor can be achieved while maintaining decent device performances. Besides,(R/S)-SCFPY represents an impressive TADF emitter, which shows promoted g factor and recorded high device EQE_(max)among similar molecules.

关键词： chiral spiro-skeleton thermally activated delayed fluorescence circularly polarized photoluminescence circularly polarized electroluminescence dissymmetry factor

同方期刊数据库