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1.
Fullerene(富勒烯)独特的结构和性质吸引了高分子界广泛的关注.迄今,已通过和自由基共聚[1]、活性自由基聚合[2]、阳离子聚合[3]、阴离子聚合[4~8]以及配位聚合[9~13]等诸多方法相结合制备出了种类繁多的富勒烯高分子衍生物.不仅如此,富勒烯家族的重要分支--富勒烯卤化物,其独特的分子结构和具有的新性质也甚引起人们的重视[14,15].  相似文献   

2.
富勒烯(Fullerene)独特的结构和性质吸引了高分子界的广泛的关注.迄今,已通过和自由基共聚、活性自由基聚合、阳离子聚合、阴离子聚合、以及配位聚合等诸多方法相结合制备出了种类繁多的富勒烯高分子衍生物,不仅如此,富勒烯家族的重要分支——富勒烯卤化物,其独特的分子结构和具有的新性质也引起了人们的重视.  相似文献   

3.
4.
A Convenient Synthesis of Novel Meldrum's Acid C60 Fullerene Derivatives   总被引:1,自引:0,他引:1  
A series of novel Meldrum's acid C60 derivatives were prepared in moderate yields from a convenient one-pot reaction of C60, the Meldrum's acid derivatives, 12 and 1,8-diazabicyclo-[5,4,0]-undec-7-ene (DBU) in toluene at room temperature under nitrogen atmosphere. All the new compounds were fully characterized by the spectral data and elemental analysis. A carbene intermediate mechanism was proposed for this reaction.  相似文献   

5.
碳笼烯(C60)在高分子领域中的研究进展   总被引:3,自引:0,他引:3  
综述了碳笼烯(C60)在高分子领域中的研究进展,包括碳笼烯的高分子化、与聚合物形成电荷转移复合物以及作为催化聚合反应的催化剂。  相似文献   

6.
王乃兴 《合成化学》2002,10(3):251-252
通过伯氨氢原子在一定条件下发生α-消除得到活性中间体氮烯的方法,合成了水溶性五加成C60二甘肽衍生物,产率12.3%。  相似文献   

7.
在ITO透明电极和石英基片上,分别制备了两种C60吡咯环多羧基衍生物的自组装膜,并用接触角、紫外光谱和和电化学循环伏安进行表征,测定限这两种自装膜体系的光电转换性质,研究了电子受体、偏压和光强等因素对它的影响。  相似文献   

8.
C60-TTF及其衍生物的结构与光谱的理论研究   总被引:2,自引:0,他引:2  
采用ZINDO系列方法优化了环状桥联的C60-TTF分子及其7个衍生物的几何构型,研究了各分子的电子结构,以稳定构型为基础,计算了各分子的电子光谱,理论计算值与实验值符合得较好,对电子光 的本质在理论上进行了指认,部分合物的电子光谱属于理论预测。  相似文献   

9.
综述近年在水溶性C_(60)衍生物合成及生物活性方面所取得的进展。  相似文献   

10.
C60(OH)n的快速制备及其机理研究   总被引:16,自引:1,他引:16  
C60(OH)n在生物、医药、高分子材料等许多方面具有应用前景[1~3],其合成对C60衍生物的水溶液化学研究与合成新的有机化合物具有重要意义.  相似文献   

11.
IntroductionInrecentyears,thepolymericmodificationoffullerenehasattractedagreatinterest[1].Fullereneanditsderivativescanbedirectlyincorporatedintoavarietyofpolymersbycopolymerizationorgrafting.Fullerene-basedpolystyreneanditsderivativescanbepreparedi…  相似文献   

12.
Copolymerization of fullerene (C60) with methyl methacrylate (MMA) was carried out using triphenylbismuthonium ylide (abbreviated as Ylide) as a novel initiator in dioxan at 60°C for 4 h in a dilatometer under a nitrogen atmosphere. The reaction follows ideal kinetics: Rp∝ [Ylide]0.5[C60]?1.0[MMA]1.0. The rate of polymerization increases with an increase in concentration of initiator and MMA. However, it decreases with increasing concentration of fullerene due to the radical scavenging effect of fullerene. The overall activation energy of copolymerization was estimated to be 57 KJ mol?1. The fullerene-MMA copolymers (C60-MMA) were characterized by FTIR, UV–Vis, NMR and GPC analyses.  相似文献   

13.
合成FullereneC60的新方法   总被引:1,自引:0,他引:1  
C60(Backminsterfullerene)是一种巨型分子组成的纯碳物质.1985年,H.W.Kroto等采用激光辐射蒸发石墨制备出稳定的C60原子簇,提出它是切角多面体的结构.1990年,R.Huffman等合成并分离出稳定的C60和C70簇合物,开辟了球化学的崭新领域。目前,本领域尝试研制一系列的衍生物,并用于轻型高效电池、电子计算机蕊片、燃料、太空火箭推进剂、超级润滑剂和癌症治疗等方面,开辟了C60的广泛的应用前景.  相似文献   

14.
In this article, we present the synthesis of a series of oligo(oxymethylenes) capped with 1‐phenylethanol and MeOH. The anionic condition affords enantiomerically pure oligo(oxymethylene) oligomers, while the cationic oligomerization leads to a racemic mixture of the oligo(oxymethylene) chain.  相似文献   

15.
尽管目前人们对富勒烯[C60]的过渡金属有机物研究较多[1],但通过氮卡宾方式连接的C60二茂铁衍生物尚未见报道。鉴于对C60反应的浓厚兴趣及二茂铁的广泛应用价值[2]我们 利用C60的缺电子性[3]将其与二茂铁甲基氮卡宾进行[1+2]环加成反应,分离并表征了一种具有齿轮式结构的新奇C60二茂铁衍生物(CpFeC5H4CH2N)5C60(l)。  相似文献   

16.
本文综述了近年来C60掺杂型导电高分子的研究进展。通过实例,结合光谱的研究,阐述了C60与被掺杂的导电高分子之间存在3种相互作用方式,在光电导材料和光折射材料等领域,C60掺杂型高分子有很好的应用前景。  相似文献   

17.
The electrochemically active polymers have been formed during electro-reduction carried out in solution containing fullerenes, C60 or C70, and transition metal complexes of Pd(II), Pt(II), Rh(III), and Ir(I). In these films, fullerene moieties are covalently bounded to transition metal atoms (Pd and Pt) or their complexes (Rh and Ir) to form a polymeric network. All films exhibit electrochemical activity at negative potentials due to the fullerene cages reduction process. For all studied metal complexes, yields of formation of films containing C70 are higher than yields of electrodeposition of their C60 analogs. C70 /M films also exhibit higher porosity in comparison to C60/M layers. The differences in film morphology and efficiency of polymer formation are responsible for differences in electrochemical responses of these films in acetonitrile containing supporting electrolyte only. C70/M films shows more reversible voltammeric behavior in negative potential range. They also show higher potential range of electrochemical stability. Processes of film formation and electrochemical properties of polymers depend on the transition metal ions or atoms bonding fullerene cages into polymeric network. The highest efficiency of polymerization was observed for fullerene/Pd and fullerene/Rh films. In the case of fullerene/Pd films, the charge transfer processes related to the fullerene moieties reduction in negative potential range exhibit the best reversibility among all of the studied systems. Capacitance performances of C60/Pd and C70/Pd films deposited on the porous Au/quartz electrode were also compared. Capacitance properties of both films are significantly affected by the conditions of electropolymerization. Only a fraction of the film having a direct contact with solution contributes to pseudocapacitance. Capacitance properties of these films also depend on the size of cations of supporting electrolyte. The C70/Pd film exhibits much better capacitance performance comparison to C60/Pd polymer.  相似文献   

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