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基于离子相互作用,实现了以聚苯胺(PANI)为聚阳离子,以聚(邻氨基苯甲酸)(PCAN)、聚(邻氨基苯磺酸)(PSAN)为聚阴离子的层-层自组装,形成层厚均匀的全共轭超薄功能膜.由于磺酸基—SO3-的电负性高于—COO-,使得PANI-PSAN自组装膜沉积量小于PANI-PCAN;电化学实验结果显示,由于PCAN和PSAN的导电性均弱于PANI,所以两种自组装膜的电化学性能取决于PANI,但同时受到羧酸、磺酸基团的较大影响,使得PANI-PCAN自组装膜的电化学性能要优于PANI-PSAN.
Based on the ionic interaction, the self-assembly of polyaniline (PANI) as polycation, polyanion (PCAN) and poly (anthranilic sulfonic acid) (PSAN) The PANI-PSAN self-assembled film deposited less than PANI-PCAN; Electrochemical experiments showed that the PANI-PSAN self-assembled film deposited less than PANI-PCAN due to the electronegativity of sulfonic acid group -SO3- higher than -COO-, Since the conductivity of PCAN and PSAN are weaker than that of PANI, the electrochemical performance of the two self-assembled films is dependent on PANI, but at the same time, it is greatly affected by the carboxylic acid and sulfonic acid groups, which makes PANI-PCAN self- Chemical performance is better than PANI-PSAN.