Study on the Radiation Synthesis Mechanism and the Electrochemical Property of Polyaniline

作     者：Shuo Yan Zi-Fang Guo Zhi-Qing Ge Bao-Ying Zhang Ya-Ru Zhang Yi-Shao Li Mo-Zhen Wang Xue-Wu Ge Shuo Yan;Zi-Fang Guo;Zhi-Qing Ge;Bao-Ying Zhang;Ya-Ru Zhang;Yi-Shao Li;Mo-Zhen Wang;Xue-Wu Ge

作者机构：State Key Laboratory of Precision and Intelligent ChemistryDepartment of Polymer Science and EngineeringUniversity of Science and Technology of ChinaHefei230026China School of Nuclear Science and TechnologyUniversity of Science and Technology of ChinaHefei230026China 

出 版 物：《Chinese Journal of Polymer Science》 (高分子科学(英文版))

年 卷 期：2025年第43卷第2期

页      面：328-340页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 070303[理学-有机化学] 0703[理学-化学] 

基　　金：financially supported by the National Natural Science Foundation of China(Nos.51973205 and 51773189) the Fundamental Research Funds for the Central Universities(Nos.WK9110000066,WK345000005 and WK345000006) 

主　　题：Aniline Radiation-induced polymerization Polyaniline Electrochemical property 

摘      要：As a highly promising conductive polymer material,the synthesis method,structure regulation,and performance improvement of polyaniline(PANI)are hot research *** this work,the radiation-induced polymerization of aniline in HNO_(3)solution was successfully achieved at room temperature without the use of chemical *** the analysis of the radiation chemical reactions of inorganic acids and nitrate salt solutions,the characterization of the intermediate free radicals in the irradiated systems,and the influence of the pH of the solutions on the polymerization activity and product morphologies,the radiation-induced polymerization mechanism of aniline is discussed in detail and *** at a condition of[HNO_(3)][aniline],i.e.,pH2.5,PANI can be successfully obtained underγ-ray *** polymerization begins with the oxidation of aniline cations to aniline cation radicals by·NO_(3)generated by radiolysis reactions,and undergoes repeated three steps of monomer free radical recombination,deprotonation,and oxidation reaction of·NO_(3),thus forming a PANI *** addition to the polymerization reaction,the aniline units are protonated and oxidized because of the strongly acidity and oxidation of the reaction system under γ-ray irradiation,which means that the molecular chain structure of the radiation-synthesized PANI can be regulated by pH,nitrate concentration,and irradiation ***-synthesized PANI has a moderate protonation and oxidation state,which can be used for the preparation of PANI supercapacitors with better electrochemical properties than those prepared by chemical oxidation under the same *** work presents a new radiation-synthesis method and polymerization mechanism of PANI,which not only expands the application of radiation technique in the field of polymer synthesis,but also provides a new idea for the structural regulation and electrochemical property optimization of PANI.