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首页> 外文期刊>The Journal of Organic Chemistry >Synthesis and Supramolecular Organization of Regioregular Polythiophene Block Oligomers
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Synthesis and Supramolecular Organization of Regioregular Polythiophene Block Oligomers

机译:区域规则的聚噻吩嵌段低聚物的合成和超分子组织

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The self-assembly of functional polythiophenes was studied by a bottom-up approach “from molecule to polymer”. The synthesis and the X-ray structure of 2,5-dibromo-3-styryl and 3- 20,30,40,50,60-pentafluorostyryl-thiophenes revealed a supramolecular arrangement controlled by π-π interactions between the aromatic rings. A [2 t 2] photocyclization reaction in the solid state of (E)-1-20,50-dibromo-30-thienyl-2-pentafluorophenylethene triggers the formation of a rare cycloadduct comprising thiophene rings. The X-ray analysis confirmed its rctt stereochemistry. The synthesis of P3HT-b-P3ST and P3HT-b-P3STF block oligomers was achieved by aGRIM method in good yields. An indirect proof of well-defined nanostructured organization was provided by the partial photocyclization of pendant styryl moieties under UV irradiation.
机译:通过自下而上的方法“从分子到聚合物”研究了功能性聚噻吩的自组装。 2,5-二溴-3-苯乙烯基和3- 20,30,40,50,60-五氟苯乙烯基-噻吩的合成和X射线结构显示了由芳香环之间的π-π相互作用控制的超分子排列。 (E)-1-20,50-二溴-30-噻吩基-2-五氟苯基乙烯在固态下的[2 t 2]光环化反应触发了稀有的包含噻吩环的加合物的形成。 X射线分析证实其rctt立体化学。通过aGRIM方法以高收率合成了P3HT-b-P3ST和P3HT-b-P3STF嵌段低聚物。在紫外辐射下,苯乙烯基侧基部分的部分光环化提供了明确定义的纳米结构组织的间接证明。

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