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Studies on one-dimensional polyanilines prepared with n-dodecylbenzenesulfonic and camphorsulfonic acids

机译:正十二烷基苯磺酸和樟脑磺酸制备一维聚苯胺的研究

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Anilinium salts complexed with n-dodecylbenzenesulfonic acid (DBSA) and camphorsulfonic acid (CSA) were found to self-assemble into cylindrical micelles with bigger diameters than those complexed with only DBSA or CSA. These cylindrical micelles were polymerized into one-dimensional copolyaniline nanotubes (PANIDBSACSA) via emulsion polymerization, demonstrating various morphologies depending on the ratio of DBSA to CSA. The UV-visible-NIR spectra of neat PANICSA and PANIDBSACSAs illustrate significant free carrier tails in the NIR region and conductivity 10-20 times higher than that of neat PANIDBSA whose UV-visible-NIR spectrum does not illustrate significant carrier tails. When the number of moles of DBSA is equivalent to or exceeds that of CSA in the polymerization mixture, SEM and TEM micrographs of the PANIDBSACSAs reveal that they have larger diameters than that of neat PANIDBSA. Besides, some of the surfaces of the big nanotubes were implanted and mounted with lots of small nanofibers of neat PANICSA polymerized from some of the CSA-complexed aniliniums which were excluded from the cylindrical micelles before polymerization. TGA thermograms of PANIDBSACSAs show an intimate relationship between thermal deprotonation and the DBSA to CSA ratio. X-ray diffraction patterns demonstrate a layered structure arrangement of polyaniline molecules of all one-dimensional nanofibers. (c) 2015 Society of Chemical Industry
机译:发现与正十二烷基苯磺酸(DBSA)和樟脑磺酸(CSA)络合的苯胺盐自组装成直径比仅与DBSA或CSA络合的直径更大的圆柱状胶束。这些圆柱形胶束通过乳液聚合被聚合为一维共聚苯胺纳米管(PANIDBSACSA),根据DBSA与CSA的比例显示出各种形态。纯PANICSA和PANIDBSACSA的UV-可见-NIR光谱显示了在NIR区域中显着的自由载流子尾,其电导率比纯PANIDBSA的UV-可见-NIR光谱未显示出显着的载子尾高10-20倍。当聚合混合物中DBSA的摩尔数等于或超过CSA的摩尔数时,PANIDBSACSA的SEM和TEM显微照片显示,它们的直径比纯PANIDBSA大。此外,在大纳米管的一些表面上植入并安装了许多细小的纳米纤维,这些细纳米纤维是由一些CSA络合的苯胺聚合而成的,其是纯的PANICSA聚合而成的,这些聚合纤维在聚合前不被圆柱形胶束排除。 PANIDBSACSA的TGA热分析图显示了热去质子与DBSA与CSA之比之间的密切关系。 X射线衍射图表明所有一维纳米纤维的聚苯胺分子的分层结构排列。 (c)2015年化学工业学会

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