物理化学学报 >> 2002, Vol. 18 >> Issue (02): 106 -111 .doi: 10.3866/PKU.WHXB20020203

研究论文 上一篇    下一篇

聚-2-氨基吡啶电化学合成及性质

阚锦晴;李想;李永舫   

  1. 扬州大学理学院化学系,扬州 225002; 中国科学院化学研究所,北京 100080
  • 收稿日期:2001-06-21 修回日期:2001-08-14 发布日期:2002-02-15
  • 通讯作者: 阚锦晴 E-mail:jqkan@263.net

Synthesis and Properties of Poly-2-aminopyridine

Kan Jin-Qing;Li Xiang;Li Yong-Fang   

  1. Department of Chemistry, School of Sciences, Yangzhou University,Yangzhou 225002;Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080
  • Received:2001-06-21 Revised:2001-08-14 Published:2002-02-15
  • Contact: Kan Jin-Qing E-mail:jqkan@263.net

摘要: 报导了在 0.43 mol•dm-3 C6H6N2和0.01 mol•dm-3 NaOH中用循环伏安法合成聚-2-氨基吡啶. 聚-2-氨基吡啶在1.0 mol•dm-3 ZnCl2(pH=4.99)溶液中的循环伏安图上有三对氧化-还原峰.旋转环-盘实验的结果表明,在 2-氨基吡啶聚合的初期有中间体生成.由红外光谱可知,聚-2-氨基吡啶具有头-尾相接的结构.聚-2-氨基吡啶平均粒子大小约893 nm, 平均粒子间距约 255 nm. 由聚-2-氨基吡啶正极和锌负极及2.5 mol•dm-3 ZnCl2溶液和 3.0 mol•dm-3 NH4Cl (pH=5.5) 溶液构成的电池,其放电曲线类似于Li-SOCl2, 放电曲线的中间区域非常平稳.

关键词: 2-氨基吡啶, 电化学聚合, 循环伏安, 聚-2-氨基吡啶, 粒子尺寸

Abstract: Poly-2-aminopyridine was synthesized using potential cycling in the solution of 0.43 mol•dm-3 2-aminopyridine and 0.01 mol•dm-3 NaOH. There are three pairs of redox peaks on the cyclic voltammogram of poly-2-aminopyridine in the solution of 1.0 mol•dm-3 ZnCl2 (pH=4.99). The experiments of rotating ring-disk electrode(RRDE)indicate that an intermediate is generated in the initiation of polymerization. The IR spectra indicate that poly-2-aminopyridine has head-to-tail structure. According to the results of atom force microscope the average particle size of poly-2-aminopyridine is about 893.4 nm, and the average distance between particles is about 255 nm. The discharge behavior of the battery consisting poly-2-aminopyridine as cathode, and zinc as anode in an electrolytic solution of 2.5 mol•dm-3 ZnCl2+3.0 mol•dm-3 NH4Cl (pH=5.5) is very similar to that of the battery of Li-SOCl2. The discharge curve is very flat in the middle region.

Key words: 2-aminopyridine, Electrochemical polymerization, Cyclic voltammetry,  Poly-2-aminopyridine, Partical size