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The Effect of Hydrogen Bonding on Self-Assembled Polyaniline Nanostructures

机译:氢键对自组装聚苯胺纳米结构的影响

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Polyaniline (PANI) nanotubes with an outer diameter of 165-240 nm and an inner diameter of 10-70 nm were prepared by a self-assembly process in the presence of six different carboxylic acids - propionic acid (PA), lactic acid (LA), succinic acid (SA), malic acid (MA), tartaric acid (TA), and citric acid (CA) - as the dopants. These nanotubes aggregated to form nanotube dendrites when the carboxylic acids contain an OH group. Moreover, the number of OH and COOH groups of the carboxylic acids affected the size, aggregated dendrite morphology, and thermal and electrical properties of the nanotubes. It was proposed that the micelle formed by the carboxylic acids acts as a template in the formation of the nanotubes, while the hydrogen bonds between the polymer chain of PANI and the OH group of the carboxylic acids supply a driving force to form the aggregated nanotube dendrites.
机译:在六种不同的羧酸-丙酸(PA),乳酸(LA)的存在下,通过自组装工艺制备了外径为165-240 nm,内径为10-70 nm的聚苯胺(PANI)纳米管),琥珀酸(SA),苹果酸(MA),酒石酸(TA)和柠檬酸(CA)-作为掺杂剂。当羧酸包含OH基时,这些纳米管聚集形成纳米管树枝状。此外,羧酸的OH和COOH基团的数目影响纳米管的尺寸,聚集的枝晶形态以及热和电性能。有人提出,由羧酸形成的胶束充当纳米管形成的模板,而PANI的聚合物链与羧酸的OH基团之间的氢键提供驱动力以形成聚集的纳米管树枝状晶体。 。

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