Synthesis of π-conjugated polymer containing both thiophene and phosphole sulfide in the main chain by simultaneous post-element transformation of organotitanium polymer,Journal of Polymer Science Part A: Polymer Chemistry

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Synthesis of π-conjugated polymer containing both thiophene and phosphole sulfide in the main chain by simultaneous post-element transformation of organotitanium polymer
Journal of Polymer Science Part A: Polymer Chemistry Pub Date : 2019-10-16 , DOI: 10.1002/pola.29522
Yoshimasa Matsumura ₁ , Hiroki Nishiyama ₁ , Shinsuke Inagi ₁ , Ikuyoshi Tomita ₁

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The synthesis and unique optoelectronic features of a π-conjugated polymer containing both thiophene and 1-phenylphosphole sulfide units (multiple heteroles) in the main chain by the post-element transformation of a regioregular organometallic polymer possessing titanacyclopentadiene-2,5-diyl unit are described. The π-conjugated polymer containing multiple heteroles was obtained in 73% yield by the simultaneous reaction of the organotitanium polymer with sulfur monochloride and dichlorophenylphosphine (0.6 equiv each), whose number-average molecular weight (M_n) and the molecular-weight distribution (M_w/M_n) were estimated to be 11,000 and 3.4, respectively, by the size exclusion chromatography (SEC). The π-conjugated polymer thus obtained was found to have the high HOMO and the low LUMO energy levels due to the electron-rich thiophene and electron-deficient phosphole sulfide units, respectively, as supported by its cyclic voltammetry (CV) analysis. Compared to a mixture of a polymer containing sole thiophene-unit and that containing sole phosphole sulfide units, the π-conjugated polymer-containing multiple heteroles proved to exhibit interesting optical properties. For example, a specific emission peak was observed at 608 nm in the photoluminescence spectrum, which was not observed in the case of the thiophene-containing polymer, the phosphole-containing polymer, and their mixture. © 2019 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2019, 57, 2519–2525

中文翻译：

有机钛聚合物同时元素后转化合成主链上同时含有噻吩和硫化磷的π共轭聚合物

通过具有钛环戊二烯-2,5-二基单元的区域规则有机金属聚合物的后元素转变，合成了在主链中同时包含噻吩和 1-苯基磷硫醚单元（多个杂分子）的 π-共轭聚合物及其独特的光电特性。描述。_{有机钛聚合物与一氯化硫和二氯苯基膦（各0.6当量）同时反应，得到了含有多个杂分子的π共轭聚合物，产率73%，其数}均分子量（Mn）和分子量分布（M _w / M _n) 通过尺寸排阻色谱法 (SEC) 估计分别为 11,000 和 3.4。如循环伏安法 (CV) 分析所支持的，由此获得的 π-共轭聚合物被发现具有高 HOMO 和低 LUMO 能级，这分别是由于富含电子的噻吩和缺电子的磷硫醚单元。与含有唯一噻吩单元的聚合物和含有唯一磷硫醚单元的聚合物的混合物相比，含有多个杂分子的 π-共轭聚合物显示出有趣的光学性质。例如，在光致发光光谱中在608nm处观察到特定的发射峰，而在含噻吩聚合物、含膦聚合物及其混合物的情况下未观察到。© 2019 Wiley Periodicals, Inc. J. Polym。科学，A 部分：Polym。化学。2019 , 57 , 2519–2525

更新日期：2019-10-16

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