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Metal Free Acid‐Mediated Solid‐State Polymerization and Processability of Polymers Based on 3,4‐Alkylenedioxythiophenes
Journal of Polymer Science Part A: Polymer Chemistry Pub Date : 2019-01-30 , DOI: 10.1002/pola.29326 Bikash Kumar Sikder 1
Journal of Polymer Science Part A: Polymer Chemistry Pub Date : 2019-01-30 , DOI: 10.1002/pola.29326 Bikash Kumar Sikder 1
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The present article reports metal free acid‐mediated polymerization of 3,4‐alkylenedioxythiophenes in a solvent free medium and processability of insoluble polymers. It also describes structural variants and functional aqueous dispersions based on 3,4‐alkylenedioxythiophenes. Polymers were processed by dispersing the insoluble polymer powders in aqueous media using polymeric aromatic surfactant (polystyrenesulfonate, PSS) and aliphatic surfactant (sodiumdodecylsulfonate, SDS), respectively. The effect of surfactant on particle size, stability, and conductivity of the dispersions was investigated in detail. Polymer particles in SDS‐based dispersions tend to agglomerate which resulted enhanced conductivity of the thin films. Electrochemical studies revealed that the polymers are electroactive in nature and are transparent in oxidized state. The electrochromic contrast between the oxidized and reduced states of the polymers was in the range of 40–46%. © 2019 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2019, 57, 783–791
中文翻译：
金属游离酸介导的基于3,4-亚烷基二氧噻吩的聚合物的固态聚合和可加工性
本文报道了在无溶剂介质中由金属游离酸介导的3,4-亚烷基二氧噻吩的聚合反应以及不溶性聚合物的可加工性。它还描述了基于3,4-亚烷基二氧噻吩的结构变体和功能性水分散体。通过分别使用聚合物芳族表面活性剂（聚苯乙烯磺酸盐，PSS）和脂肪族表面活性剂（十二烷基磺酸钠，SDS）将不溶性聚合物粉末分散在水性介质中来处理聚合物。详细研究了表面活性剂对分散体的粒度，稳定性和电导率的影响。基于SDS的分散体中的聚合物颗粒易于团聚，从而导致薄膜的导电性增强。电化学研究表明，这些聚合物本质上是电活性的，在氧化态下是透明的。聚合物的氧化态和还原态之间的电致变色对比度在40-46％的范围内。分级为4 +©2019 Wiley Periodicals，Inc.J.Polym。科学，A部分：Polym。化学2019，57，783-791
更新日期：2019-01-30
中文翻译：
金属游离酸介导的基于3,4-亚烷基二氧噻吩的聚合物的固态聚合和可加工性
本文报道了在无溶剂介质中由金属游离酸介导的3,4-亚烷基二氧噻吩的聚合反应以及不溶性聚合物的可加工性。它还描述了基于3,4-亚烷基二氧噻吩的结构变体和功能性水分散体。通过分别使用聚合物芳族表面活性剂（聚苯乙烯磺酸盐，PSS）和脂肪族表面活性剂（十二烷基磺酸钠，SDS）将不溶性聚合物粉末分散在水性介质中来处理聚合物。详细研究了表面活性剂对分散体的粒度，稳定性和电导率的影响。基于SDS的分散体中的聚合物颗粒易于团聚，从而导致薄膜的导电性增强。电化学研究表明，这些聚合物本质上是电活性的，在氧化态下是透明的。聚合物的氧化态和还原态之间的电致变色对比度在40-46％的范围内。分级为4 +©2019 Wiley Periodicals，Inc.J.Polym。科学，A部分：Polym。化学2019，57，783-791
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