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Self-assembly of poly(o-methoxyaniline) hollow nanospheres from a polymeric acid solution

机译：聚（邻甲氧基苯胺）空心纳米球从聚合酸溶液的自组装

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摘要

Self-assembled poly(o-methoxyaniline) (POMA) hollow nanospheres were prepared in a solution of poly(methyl vinyl ether-alt-maleic acid) (PMVEA) by oxidative polymerization using ammonium persulfate as the oxidant. The weight ratio of PMVEA to o-methoxyaniline in the solution had a significant effect on the morphology of the poly(o-methoxyaniline) nanospheres as determined by scanning electron microscopy. The diameter of the hollow nanospheres decreased from 440 to 210 nm with an increase in the PMVEA concentration from 1% to 5%. Freeze-fracture transmission electron microscopy results showed the presence of spherical micelles composed of PMVEA/o-methoxyaniline prior to polymerization, which also decreased in size as more PMVEA was added to the solution, and can act as soft templates for the formation of the hollow POMA nanospheres. The POMA/PMVEA hollow nanospheres were characterized by means of Fourier transform infrared, UV-visible, x-ray photoelectron spectroscopy, elemental analysis and conductivity measurements.
机译：使用过硫酸铵作为氧化剂，在聚（甲基乙烯基醚-马来酸-马来酸）（PMVEA）溶液中通过氧化聚合反应制备了自组装的聚（邻甲氧基苯胺）中空纳米球。溶液中PMVEA与邻甲氧基苯胺的重量比对聚（邻甲氧基苯胺）纳米球的形态具有显着影响，如通过扫描电子显微镜所确定的。随着PMVEA浓度从1％增加到5％，中空纳米球的直径从440减小到210 nm。冷冻断裂透射电子显微镜结果表明，聚合前存在由PMVEA /邻甲氧基苯胺组成的球形胶束，随着向溶液中添加更多的PMVEA，球形胶束的尺寸也减小，并可作为形成空心的软模板POMA纳米球。 POMA / PMVEA中空纳米球通过傅立叶变换红外，紫外可见光，X射线光电子能谱，元素分析和电导率测量来表征。

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