Katano Hajime, Kameoka Ikuo, Murayama Yuji, Tatsumi Hirosuke, Tsukatani Toshihide, Makino Masahiro
Department of Bioscience, Fukui Prefectural University, Matsuoka, Fukui 910-1195, Japan.
Anal Sci. 2004 Nov;20(11):1581-5. doi: 10.2116/analsci.20.1581.
The transfer of polyammonium ions, poly[(dimethylimino)-1,6-hexanediyl] (n = 140, n being the degree of polymerization) ion and poly[(dimethylimino)(2-oxo-1,2-ethanediyl)imino-alpha,omega-alkanediylimino(1-oxo-1,2-ethanediyl)(dimethylimino)-alpha',omega'-alkanediyl] ([-N+ (CH3)2CH2CONH(CH2)x NHCOCH2N+ (CH3)2(CH2)y-]n, x = 2, 3, 4, or 6, y = 3 or 6, and n = 30-130) ions, at a polarizable nitrobenzene / water interface has been studied by normal pulse voltammetry and cyclic voltammetry. Despite the polydispersity of the preparations, by normal pulse voltammetry, an S-shaped current-potential curve with a well-defined limiting current, and, by cyclic voltammetry, a pair of anodic and cathodic peak currents due to the transfer of polyammonium ions across the interface were observed within the potential window. The voltammetric behavior is described. Also, the effect of ion-pair formation of the polyammonium ions with supporting electrolyte anions in nitrobenzene- and water-phases on the half-wave or midpoint potential of the ion-transfer, and the relation between the structure of the polyammonium ions and the transfer potentials are discussed.
通过常规脉冲伏安法和循环伏安法研究了多铵离子、聚[（二甲基亚氨基）-1,6-己二基]（n = 140，n为聚合度）离子和聚[（二甲基亚氨基）（2-氧代-1,2-乙二基）亚氨基-α,ω-烷二基亚氨基（1-氧代-1,2-乙二基）（二甲基亚氨基）-α',ω'-烷二基]（[-N+(CH3)2CH2CONH(CH2)xNHCOCH2N+(CH3)2(CH2)y-]n，x = 2、3、4或6，y = 3或6，且n = 30 - 130）离子在可极化的硝基苯/水界面的转移情况。尽管制备物具有多分散性，但通过常规脉冲伏安法观察到具有明确极限电流的S形电流-电位曲线，通过循环伏安法在电位窗口内观察到由于多铵离子跨界面转移而产生的一对阳极和阴极峰值电流。描述了伏安行为。此外，还讨论了多铵离子与硝基苯相和水相中支持电解质阴离子形成离子对对离子转移半波或中点电位的影响，以及多铵离子结构与转移电位之间的关系。
