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采用分散聚合方法在玻璃基体表面制备得表面光滑聚苯胺(PANI)导电膜。采用扫描电子显微镜(SEM)研究氧化剂过硫酸铵(APS)加入方式、质子酸环境对制得膜形貌的影响。通过紫外光谱和红外光谱分析玻璃基体表面导电PANI膜的结构。结果发现:采用滴加APS方式可制得致密PANI膜;本身黏度较大的无机含氧酸(高氯酸、磷酸)与PVP稳定剂并用时会使体系黏度增大,无法制得导电薄膜(高氯酸、PVP体系)或只能得到有缺限的膜(磷酸、PVP体系)。紫外分析证实玻璃基体表面是掺杂态PANI膜,红外分析表明PANI膜结构中不含有稳定剂PVP。膜的电导率数量级在10-3S/cm,电导率高低与形貌好坏存在一致性。
A polyaniline (PANI) conductive film was prepared on the surface of glass substrate by dispersion polymerization. Scanning electron microscopy (SEM) was used to study the effect of oxidant ammonium persulfate (APS) on the morphology of the prepared membranes. The structure of conductive PANI film on the surface of glass substrate was analyzed by UV and IR. The results showed that: the use of APS can be prepared by dropwise addition of dense PANI film; its own viscosity of inorganic oxy-acid (perchloric acid, phosphoric acid) and PVP stabilizer and the system will increase the viscosity, can not be made of conductive film Perchloric acid, PVP systems) or only membranes with deficiencies (phosphoric acid, PVP system) can be obtained. UV analysis confirmed that the surface of the glass substrate doped PANI film, infrared analysis showed that PANI membrane structure does not contain stabilizer PVP. The conductivity of the membrane is in the order of 10-3S / cm, and the conductivity is in good agreement with the morphology.