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Comparison between poly(azomethine)s and poly(p-phenylvinylene)s containing a di-R-diphenylsilane (R = methyl or phenyl) moiety. Optical, electronic and thermal properties
European Polymer Journal ( IF 5.8 ) Pub Date : 2021-08-23 , DOI: 10.1016/j.eurpolymj.2021.110714
Patricio A. Sobarzo 1 , Andrea P. Mariman 2 , Christian O. Sánchez 1 , René A. Hauyon 2 , Fidel E. Rodríguez-González 2 , Jean Medina 2 , Ignacio A. Jessop 3 , Gonzalo Recabarren-Gajardo 4 , Alain Tundidor-Camba 2, 5 , Claudio A. Terraza 2, 5
Affiliation  

Two new silicon-containing poly(azomethine)s (PAzM-Me and PAzM-Ph) and two new silicon-containing poly(p-phenylvinylene)s (PPVSi-Me and PPVSi-Ph) were obtained from 4′,4′''-(dimethylsilanediyl)bis([1,1′-biphenyl]-4-carbaldehyde) and 4′,4′''-(diphenyl silanediyl)bis([1,1′-biphenyl]-4-carbaldehyde) with p-phenylendiamine for PAzMs or phenylenebis(methylene))bis(triphenylphosphonium) bromide for PPVSis. All polymers were structurally characterized by FT-IR, NMR and elemental analysis. The materials showed a high thermal stability (501–538 °C) with the TPS-core increasing this parameter. The absorption and emission of PAzMs and PPVSis were closely related with the nature of the silane-core in the backbone. All samples showed wide-band gaps where the TPS-core-based materials evidenced the lower energy transitions; PAzM-Ph (2.83 eV) and PPVSi-Ph (2.81 eV). This work lay the groundwork for new architectures of silane-based poly(azomethine)s and poly(p-phenylvinylene)s derivatives for potential optoelectronic applications.



中文翻译:

聚(偶氮甲碱)和含有二-R-二苯基硅烷(R = 甲基或苯基)部分的聚(对苯基亚乙烯基)之间的比较。光学、电子和热性能

从 4',4'' 获得了两种新的含硅聚(偶氮甲碱)(PAzM-Me 和 PAzM-Ph)和两种新的含硅聚(对苯基亚乙烯基)(PPVSi-Me 和 PPVSi-Ph) '-(二甲基硅烷二基)双([1,1'-联苯]-4-甲醛)和4',4'''-(二苯基硅烷二基)双([1,1'-联苯]-4-甲醛)与p-苯二胺用于 PAzM 或亚苯基双(亚甲基))双(三苯基鏻)溴化物用于 PPVSi。所有聚合物的结构都通过 FT-IR、NMR 和元素分析进行​​了表征。材料显示出高热稳定性 (501–538 °C),TPS 核增加了该参数。PAzMs和PPVSis的吸收和发射与主链中硅烷核的性质密切相关。所有样品都显示出宽带隙,其中基于 TPS 核的材料证明了较低的能量转换;PAzM-Ph (2.83 eV) 和 PPVSi-Ph (2.81 eV)。这项工作为用于潜在光电应用的硅烷基聚(偶氮甲碱)和聚(对苯基亚乙烯基)衍生物的新结构奠定了基础。

更新日期:2021-08-27
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