Preparation of Polyaniline Nanofibers by High Gravity Chemical Oxidative Polymerization
Preparation of Polyaniline Nanofibers by High Gravity Chemical Oxidative Polymerization
复制标题
超重力化学氧化聚合制备聚苯胺纳米纤维
DOI：
10.1021/ie102255r
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发表时间：
2011-05-04
影响因子：
4.2
通讯作者：
Zhao, Yi-bo
中科院分区：
文献类型：
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作者：
Lu, Xin-wei;Wu, Wei;Zhao, Yi-bo
为了探索一种适合于大规模制备聚苯胺（PANI）纳米纤维的方法，首次采用超重力化学氧化聚合法（HGCOP）在旋转填充床（RPB）中制备了PANI纳米纤维。操作条件的影响，例如，研究了苯胺浓度、超重力水平、反应温度和掺杂剂对聚苯胺纳米纤维形貌的影响。对产物进行了FTIR、UV-维斯、XRD、分子量和电导率分析。这种新方法的优点进行了讨论。在苯胺浓度（0.1 - 0.5 M）和反应温度（0 - 60 °C）的宽范围内成功地获得了PANI纳米纤维。纳米纤维保持30 - 50 nm的小直径和均匀的形态，即使在0.5 M的高初始苯胺浓度下合成。该方法为大规模制备聚苯胺纳米纤维的快速混合路线提供了一个显著的改进，并且具有潜在的应用前景。
To develop a suitable method for the mass production of polyaniline (PANI) nanofibers, the preparation of PANI nanofibers was carried out by high gravity chemical oxidative polymerization (HGCOP) in a rotating packed bed (RPB) for the first time. The influences of operating conditions, e.g., aniline concentration, high-gravity level, reaction temperature, and dopants, on the morphology of PANI nanofibers were investigated in detail. FTIR, UV−vis, XRD, molecular weight, and conductivity analyses were performed to characterize the products. Advantages of this new method are discussed. PANI nanofibers were successfully obtained in a wide range of aniline concentration (0.1−0.5 M) and reaction temperature (0−60 °C). The nanofibers kept small diameters of 30−50 nm and uniform morphology even when synthesized with a high initial aniline concentration of 0.5 M. This method provides a significant improvement to the rapid mixing route to prepare PANI nanofibers in large scale, moreover, it has potential applicatio...