Preparation and characterization of neutral and oxidized polypyrrole films
Preparation and characterization of neutral and oxidized polypyrrole films
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DOI：
10.1080/00268948208072174
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发表时间：
1982-04
影响因子：
0.7
通讯作者：
G. Street;T. Clarke;M. Krounbi;K. Kanazawa;V. Lee;P. Pfluger;J. C. Scott;G. Weiser
中科院分区：
文献类型：
--
作者：
G. Street;T. Clarke;M. Krounbi;K. Kanazawa;V. Lee;P. Pfluger;J. C. Scott;G. Weiser
摘要在无氧、无水的条件下，用电化学方法制备了聚吡咯的氧化膜和中性膜。中性薄膜是绝缘的，可以很容易地被化学氧化剂氧化，从而获得比电化学氧化更高的导电性。光学光谱学为这两种类型的氧化产生的聚合物碳离子的相似性提供了证据。核磁共振研究与α，α在这些聚合物中的成键一致；它们还显示了在化学和电化学氧化方面相对于中性聚合物的预期下场位移。对电化学氧化的聚合物和中性聚合物的ESR研究表明，存在高度可移动的自旋。
Abstract Oxidized and neutral films of polypyrrole have been prepared electrochemically in the absence of oxygen and water. The neutral films are insulating and can be readily oxidized by chemical oxidizing agents to give films of greater conductivity than can be achieved by electrochemical oxidation. Optical spectroscopy provides evidence for the similarity of the polymeric carbonium ion produced by both types of oxidation. NMR studies are consistent with the α,α’ bonding in these polymers; they also show the expected downfield shifts relative to the neutral polymer on both chemical and electrochemical oxidation. ESR studies of both the electrochemically oxidized and the neutral polymer suggest the presence of highly mobile spins.