SDBS-assisted preparation of novel polyaniline planar-structure: morphology, mechanism and hydrophobicity.
SDBS-assisted preparation of novel polyaniline planar-structure: morphology, mechanism and hydrophobicity.
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DOI：
10.1016/j.jcis.2013.09.042
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发表时间：
2014-01
影响因子：
9.9
通讯作者：
Haosen Fan;Hao Wang;Jing Guo;N. Zhao;Jian Xu
中科院分区：
文献类型：
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作者：
Haosen Fan;Hao Wang;Jing Guo;N. Zhao;Jian Xu
以十二烷基苯磺酸钠（SDBS）为助剂，对苯胺进行化学氧化聚合，制备了表面具有交错纳米纤维的叶状层次聚苯胺（PANI）结构。采用FTIR、UV-vis、XRD和XPS等手段对所制得的叶状聚苯胺的化学结构和组成进行了表征。为了研究这种微纳结构的形成机理，合成了不同聚合时间聚苯胺的微纳结构，并对其进行了观察比较。结果表明，聚苯胺微纳米结构源于聚苯胺微叶，因为SDBS作为软模板，然后在表面覆盖交错的纳米纤维。叶片状聚苯胺微纳米结构具有良好的疏水性，由于SDBS掺杂物的疏水性长十二烷基，其水接触角为134.3°。
Leaf-like hierarchical polyaniline (PANI) structure with interlaced nanofibers on the surface was prepared by chemical oxidation polymerization of aniline assisted by sodium dodecyl benzene sulfonate (SDBS). The chemical structure and the composition of the leaf-like PANI obtained were characterized by FTIR, UV–vis, XRD and XPS. In order to investigate the formation mechanism of such micro/nanostructures, some micro/nanostructures of PANI polymerized at different polymerization times were synthesized and observed for comparison. The results show that the PANI micro/nanostructures originate from PANI microleaves due to SDBS as soft template, which then covered with interlaced nanofibers on the surface. The leaf-like PANI micro/nanostructures exhibit good hydrophobic property with a water contact angle of 134.3° resulted from the hydrophobic long dodecyl groups of SDBS dopant.