One silsesquioxane-polythiophene hybrid copolymer, with combined star-like structure and intramolecular heterogeneity, was synthesized and sufficiently characterized via various methods, including FTIR, NMR, and SEC measurements. According to the exploration and characterization results, it was much more efficient at modifying SWNTs than its linear analogs in aqueous solution. The hydrophobic silsesquioxane core and PEDOT chains could locally anchor to the surface of the nanotubes, while the soluble flexible copolymer chains extended into the solution and rigid conjugated chains provided some - stacking effect to enhance adhesive force with the conjugated structure of the carbon nanotube, imparting steric stabilization to nanotube dispersion. The noncovalent interaction with SWNTs and solubility in aqueous solution improved the electrochemical characteristics of the modified-SWNT composite and availed for the preparation of a flexible and transparent electroactive film. Accordingly, this kind of silsesquioxane-polythiophene hybrid copolymer will be forwarded to apply to the assembling of flexible optoelectronic devices.

中文翻译：

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倍半硅氧烷-聚噻吩杂化共聚物作为单壁碳纳米管的高效改性剂

合成了一种具有倍半球形结构和分子内异质性的倍半硅氧烷-聚噻吩杂化共聚物，并通过多种方法（包括FTIR，NMR和SEC测量）对其进行了充分表征。根据探索和表征结果，在水溶液中修饰SWNT的效率比其线性类似物高得多。疏水倍半硅氧烷核心和PEDOT链可以局部锚固在纳米管的表面，而可溶性柔性共聚物链则延伸到溶液中，而刚性共轭链则提供了-堆积效应，以增强与碳纳米管共轭结构的粘合力，使纳米管分散体具有空间稳定性。与SWNT的非共价相互作用和在水溶液中的溶解度改善了改性SWNT复合材料的电化学特性，可用于制备柔性和透明的电活性膜。因此，这种倍半硅氧烷-聚噻吩杂化共聚物将被提出以应用于柔性光电器件的组装。