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首页> 外文期刊>Journal of Applied Polymer Science >Effect of Water on Inorganic Acids Doped Polyaniline
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Effect of Water on Inorganic Acids Doped Polyaniline

机译：水对无机酸掺杂聚苯胺的影响

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Based on gravimetric measurements, the effect of water on thin films of inorganic acids doped polyaniline (PANT) was developed. The starting point was the fact that PANT coating on the electrode of quartz crystal microbalances (QCM) showed significant frequency shifts under exposure to liquid water. The changes in the frequency as a function of treatment time in water were quantitatively measured. These changes suggested that the mass decreases under water exposure were due to dopant ions release. The data have been collected using doped PANT films with HCl, H2SO4, and H3PO4. For PANT-HCl upon immersion in water showed rapid mass loss followed by slow kinetically dopant ions release with time. However, PANT-H3PO4 and PANI-H2SO4 showed a slow kinetically release out of the film immediately upon immersion in water. The release process was well described by Fickian diffusion process. The diffusion coefficients (D) were determined and found to be dependent on the acid dopant utilized. They varied within the range of (1.68-14.7) x 10(-14) cm(2)/s. This work presented an attempt to find a simple method based on the QCM for investigating the diffusion of dopant ions out of thin PANT films upon immersion in water and determining D.
机译：基于重量测量，开发了水对无机酸掺杂聚苯胺（PANT）薄膜的影响。出发点是，石英微天平（QCM）电极上的PANT涂层在暴露于液态水后显示出明显的频移。定量测量了频率随水中处理时间的变化。这些变化表明，在水暴露下质量下降是由于掺杂剂离子的释放。使用掺杂了HCl，H2SO4和H3PO4的PANT膜收集了数据。对于PANT-HCl，浸入水中后显示出快速的质量损失，随后随着时间的流逝释放出缓慢的动力学掺杂离子。但是，PANT-H3PO4和PANI-H2SO4浸入水中后立即显示出缓慢的动力学释放。释放过程由菲克扩散过程很好地描述。确定了扩散系数（D），并发现其取决于所使用的酸掺杂剂。它们在（1.68-14.7）x 10（-14）cm（2）/ s的范围内变化。这项工作提出了寻找一种基于QCM的简单方法的尝试，该方法用于研究浸入水中并确定D时PANT薄膜中掺杂离子的扩散。

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