Abstract This paper reveals the specificity of morphology, structure and electrical properties of the new compression-molded ternary nanocomposite films based on polyaniline (PANI) doped with plasticizing dopant dodecylbenzenesulfonic acid (DBSA) and multi-walled carbon nanotubes (MWCNT), which are distributed in the dielectric matrix of polyvinylidene fluoride (PVDF). We find that this specificity appears not only due to sum of the properties of the components but also to their physical-chemical interactions. The strong influence of such interactions on the nanocomposites properties is well confirmed by Raman spectroscopy analysis of oxidation level, quantity of polarons, bipolarons and phenazine defects of the doped PANI component in binary PVDF/PANI and ternary PVDF/PANI/MWCNT nanocomposite films with 1 wt% or 10 wt% of MWCNT. Based on conductivity measurements of these films in a wide temperature range (4.2–300 K) we conclude that mechanisms of their conductivity depend on both the specific interactions and the MWCNT content. The effect of MWCNT on the electrical properties of ternary nanocomposites is more pronounced at low temperatures.

中文翻译：

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三元PVDF/聚苯胺/MWCNT纳米复合薄膜中的特定相互作用和电荷传输

摘要 本文揭示了基于聚苯胺 (PANI) 掺杂增塑掺杂剂十二烷基苯磺酸 (DBSA) 和多壁碳纳米管 (MWCNT) 的新型压缩成型三元纳米复合薄膜的形貌、结构和电性能的特异性。在聚偏二氟乙烯 (PVDF) 的介电基质中。我们发现这种特异性的出现不仅是由于组分的特性总和，而且还在于它们的物理-化学相互作用。通过对二元 PVDF/PANI 和三元 PVDF/PANI/MWCNT 纳米复合薄膜中掺杂 PANI 组分的氧化水平、极化子数量、双极化子和吩嗪缺陷进行拉曼光谱分析，可以很好地证实这种相互作用对纳米复合材料性能的强烈影响。 wt% 或 10 wt% 的 MWCNT。基于这些薄膜在很宽的温度范围（4.2-300 K）下的电导率测量，我们得出结论，它们的电导机制取决于特定的相互作用和 MWCNT 含量。多壁碳纳米管对三元纳米复合材料电性能的影响在低温下更为明显。