Reduction of 2,3,5-Triphenyl-2H-tetrazolium Chloride in the Presence of Polyelectrolytes Containing 4-Styrenesulfonate Moieties

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• 作者：Ignacio Moreno-Villoslada ; Marcos Soto ; Felipe Gonzá ; lez ; Francisco Montero-Silva ; Susan Hess ; Ichiro Takemura ; Kenichi Oyaizu ; Hiroyuki Nishide
• 刊名：Journal of Physical Chemistry B
• 出版年：2008
• 出版时间：May 1, 2008
• 年：2008
• 卷：112
• 期：17
• 页码：5350 - 5354
• 全文大小：153K
• 年卷期：v.112,no.17(May 1, 2008)
• ISSN：1520-5207

文摘

The redox behavior of 2,3,5-triphenyl-2H-tetrazolium chloride (TTC) in the presence of different polyelectrolytes such as poly(sodium 4-styrenesulfonate) (PSS), poly(sodium 4-styrenesulfonate-co-sodium maleate)at two different comonomer compositions (P(SS₁-co-MA₁) and P(SS₃-co-MA₁)), poly(sodium acrylate-co-sodium maleate) (P(AA₁-co-MA₁)), and poly(sodium acrylate) (PAA) is studied. Due to aromatic-aromaticinteractions, the polyelectrolytes containing benzene sulfonate groups produce a decrease on the reductionrate of TTC in the presence of ascorbic acid (ASC) and a shift of the anodic and cathodic peaks to highernegative potentials for the electrochemical reaction of TTC. As an important conclusion, these effects are afunction of the linear aromatic density of the polyelectrolytes.