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首页> 外文期刊>Journal of Polymer Science, Part A. Polymer Chemistry >Poly(thieno[3,4-b]-1,4-oxathiane) and poly(3,4-ethylenedioxythiophene-co-thieno[3,4-b]-1,4-oxathiane)/poly(styrene sulfonic sodium): Preparation, characterization, and optoelectronic performance
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Poly(thieno[3,4-b]-1,4-oxathiane) and poly(3,4-ethylenedioxythiophene-co-thieno[3,4-b]-1,4-oxathiane)/poly(styrene sulfonic sodium): Preparation, characterization, and optoelectronic performance

机译：聚（噻吩并[3,4-b] -1,4-氧杂蒽）和聚（3,4-乙撑二氧噻吩-共-噻吩并[3,4-b] -1,4-氧杂蒽）/聚（苯乙烯磺酸钠） ：制备，表征和光电性能

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摘要

In this work, the asymmetrical analog of 3,4-ethylenedioxythiophene (EDOT), thieno[3,4-b]-1,4-oxathiane (EOTT), was synthesized and chemically polymerized first in aqueous solution using poly(styrene sulfonic sodium) (PSS) as the polyelectrolyte to yield poly(thieno[3,4-b]-1,4-oxathiane) (PEOTT)/PSS. As-formed film exhibited low electrical conductivity (similar to 10(-4) S/cm). Alternatively, EOTT together with EDOT (in different molar ratio of 1:1 and 1:5) was copolymerized and the polymer poly(EOTT-co-EDOT)/PSS had electrical conductivity of 10(-1) S/cm. After dimethyl sulfoxide (DMSO) treatment, the electrical conductivity was enhanced to 100 S/cm; however, the conductivity of the above homopolymer was reduced (similar to 10(-5) S/cm). Raman spectroscopy was used to interpret conductivity enhancement or reduction after DMSO treatment. The conductivity decrease of PEOTT/PSS compared to poly(EOTT-co-EDOT)/PSS may arise from the conformational change of PEOTT backbone from the quasi-planar to the distorted planar mode induced by PSS-/PSSH through ionic interaction. Kinetic studies revealed that the copolymer had high coloration efficiencies (375 cm(2)/C), low switching voltages (-0.8 to +0.6 V), decent contrast ratios (45%), moderate response time (1.0 s), excellent stability, and color persistence. An electrochromic device employing poly(3-methylthiophene) and poly(EOTT-co-EDOT)/PSS as the anode and cathode materials was also studied. From these results, poly(EOTT-co-EDOT)/PSS would be a promising candidate material for organic electronics. (C) 2015 Wiley Periodicals, Inc.
机译：在这项工作中，合成了3,4-乙二氧基噻吩（EDOT）的不对称类似物，噻吩并[3,4-b] -1,4-氧杂蒽（EOTT），并首先在水溶液中使用聚苯乙烯磺酸钠进行了化学聚合。 ）（PSS）作为聚电解质产生聚（thieno [3,4-b] -1,4-oxathiane）（PEOTT）/ PSS。形成的薄膜显示出低电导率（类似于10（-4）S / cm）。或者，将EOTT与EDOT（摩尔比分别为1：1和1：5）共聚，聚合物聚（EOTT-co-EDOT）/ PSS的电导率为10（-1）S / cm。经过二甲基亚砜（DMSO）处理后，电导率提高到100 S / cm;然而，上述均聚物的电导率降低了（类似于10（-5）S / cm）。拉曼光谱用于解释DMSO处理后电导率的提高或降低。与聚（EOTT-co-EDOT）/ PSS相比，PEOTT / PSS的电导率降低可能是由于PEOTT主链通过离子相互作用引起的PSOTT-PSSH从准平面到扭曲平面模式的构象变化引起的。动力学研究表明，该共聚物具有较高的着色效率（375 cm（2）/ C），较低的开关电压（-0.8至+0.6 V），良好的对比度（45％），中等的响应时间（1.0 s），出色的稳定性和色彩持久性。还研究了采用聚（3-甲基噻吩）和聚（EOTT-co-EDOT）/ PSS作为阳极和阴极材料的电致变色器件。从这些结果来看，聚（EOTT-co-EDOT）/ PSS将成为有机电子的有前途的候选材料。 （C）2015年Wiley Periodicals，Inc.

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