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首页> 外文期刊>Journal of industrial and engineering chemistry >Synthesis and characterization of poly(9-ethynyl-9-hydroxyfluorene)
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Synthesis and characterization of poly(9-ethynyl-9-hydroxyfluorene)

机译：聚（9-乙炔基-9-羟基芴）的合成与表征

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Transition metal-catalyzed polymerizations of 9-ethynyl-9-hydroxyfluorene (EHF) were investigated. EHF was easily polymerized by various transition metal catalysts to give in relatively high yields of polymer. The MoCl5-based catalysts exhibited high catalytic activities, whereas the WCl6-based catalysts showed low catalytic activities for the present polymerization. The highest polymer yield (85%) was obtained when the (NBD)PdCl2 catalyst was used. The polymer structure was identified by such various instrumental methods as NMR, IR, and UV-visible spectroscopies to have a conjugated backbone with the fluorene and hydroxy groups. Poly(EHF) was stable to air oxidation and was soluble in such organic solvents as benzene, chlorobenzene, chloroform, DMF, and DMSO. The cyclovoltammograms of polymer exhibited the irreversible electrochemical behaviors. The oxidation of poly(EHF) was started to occur at 0.42 V (vs Ag/AgNO(3)where the vinylene unit of conjugated polymer backbone might be oxidized in the scan. And poly(EHF) also shows the irreversible reduction starting at -1.15 V. (C) 2015 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
机译：研究了过渡金属催化的9-乙炔基-9-羟基芴（EHF）的聚合。 EHF易于通过各种过渡金属催化剂进行聚合，从而获得相对较高的聚合物收率。基于MoCl 5的催化剂表现出高催化活性，而基于WCl 6的催化剂表现出低的催化活性。当使用（NBD）PdCl 2催化剂时，可获得最高的聚合物产率（85％）。通过诸如NMR，IR和UV-可见光谱的各种仪器方法鉴定聚合物结构，以具有与芴和羟基的共轭主链。聚（EHF）对空气氧化稳定，可溶于苯，氯苯，氯仿，DMF和DMSO等有机溶剂。聚合物的环伏伏安图显示出不可逆的电化学行为。聚（EHF）的氧化开始于0.42 V（vs Ag / AgNO（3）发生，在该扫描中共轭聚合物主链的亚乙烯基单元可能会被氧化，并且聚（EHF）也显示出不可逆还原性始于- 1.15 V.（C）2015韩国工业化学工程学会，Elsevier BV出版，保留所有权利。

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