Electron transfer in electroactive poly(glutamic acid)

Electron transfer in electroactive poly(glutamic acid)
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电活性聚谷氨酸中的电子转移

DOI:
10.1016/j.eurpolymj.2008.04.038
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发表时间:
2008-07
影响因子:
6
通讯作者:
Wu, Shuizhu
Wu, Shuizhu
中科院分区:
化学2区
文献类型:
--
作者:
Zhao, Jianqing;Ma, Boling;Lei, Xiuming;Li, Rong;Wu, Shuizhu

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通过在聚谷氨酸聚合物链上掺入二茂铁,合成了电活性生物聚合物。在电子受体甲基紫紫素二氯化物的存在下,含二茂铁的聚谷氨酸表现出有效的光诱导电子转移。用循环伏安法研究了该氧化还原活性聚合物分解过氧化氢和抗坏血酸的电催化活性。过氧化氢还原峰电流在10 ~ 100mm范围内与过氧化氢浓度成正比;对于抗坏血酸,氧化峰电流在80mM以下与抗坏血酸浓度呈线性关系,可用于催化、光敏剂、传感器等方面的电活性生物聚合物。该研究可为开发环境友好型电活性和光活性生物聚合物提供策略。
Electroactive biopolymer was synthesized by incorporation of ferrocene moieties onto poly(glutamic acid) polymer chains. In the presence of the electron acceptor methyl viologen dichloride, the ferrocene-containing poly(glutamic acid) exhibits efficient photoinduced electron transfer. This redox-active polymer’s electrocatalytic activity for the decomposition of hydrogen peroxide and ascorbic acid was investigated by using cyclic voltammetry. As for hydrogen peroxide, the reduction peak current shows proportional response to peroxide concentration in the wide range of 10–100mM; as for ascorbic acid, the oxidation peak current displays linear dependence on the ascorbic acid concentration under 80mM, which could lead to the electroactive biopolymer’s applications in catalysis, photosensitizer, sensors, etc. The study could offer a strategy for developing environment-friendly electroactive and photoactive biopolymers.
有机溶液中聚合物和表面活性剂形成的介晶结构和宏观图案
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