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以盐酸为掺杂剂,过硫酸铵(APS)为氧化剂,采用原位聚合的方法制备了导电聚酯片(PET)。为了增大导电高分子聚苯胺(PANI)在合成基材聚酯片表面的吸附量和黏附性,在苯胺聚合前对聚酯片进行酸处理。酸处理对聚酯片表面润湿性、化学组成及形貌的影响分别采用接触角测试仪、X射线光电子能谱仪、扫描电镜进行表征。苯胺聚合后聚酯片质量变化用于评估聚苯胺在聚酯片表面吸附量的大小。1-甲基-2-吡咯烷酮清洗后导电聚酯片颜色和电导率的变化用于判断聚苯胺在聚酯片表面的黏附性大小。实验结果表明,酸处理有效地提高了聚苯胺在聚酯片表面的吸附量和黏附性。该方法制备的导电聚酯片有望直接作为导电器件使用,可在一定程度上提高聚苯胺的可加工性。
Hydrophobic polyester (PET) was prepared by in-situ polymerization using hydrochloric acid as dopant and ammonium persulfate (APS) as oxidant. In order to increase the adsorption capacity and adhesion of conductive polymer polyaniline (PANI) on the surface of synthetic polyester sheet, the polyester sheet was acid treated before the polymerization of aniline. The effects of acid treatment on the surface wettability, chemical composition and morphology of polyester sheet were characterized by means of contact angle tester, X-ray photoelectron spectroscopy and scanning electron microscopy. The change in the mass of aniline after polymerization of the polyaniline was used to evaluate the amount of polyaniline adsorbed on the surface of the polyester sheet. 1-methyl-2-pyrrolidone after cleaning conductive polyester sheet color and conductivity changes for the determination of polyaniline in the polyester sheet surface adhesion size. The experimental results show that the acid treatment effectively improves the adsorption capacity and adhesion of polyaniline on the surface of the polyester sheet. The conductive polyester sheet prepared by the method is expected to be directly used as a conductive device, which can improve the processability of the polyaniline to a certain extent.