电化学法合成聚苯胺及其防腐蚀应用——“聚苯胺化学合成”实验的改进与创新设计  

Electrochemical Synthesis of Polyaniline and Its Anticorrosive Application:Improvement and Innovative Design of the“Chemical Synthesis of Polyaniline”Experiment

作　　者：蒋莉 陈昌正 苏洋 宋浩 董延茂[1] 袁妍 李理[1] Li Jiang;Changzheng Chen;Yang Su;Hao Song;Yanmao Dong;Yan Yuan;Li Li(School of Chemistry and Life Sciences,Suzhou University of Science and Technology,Suzhou 215009,Jiangsu Province,China)

机构地区：[1]苏州科技大学,化学与生命科学学院,江苏苏州215009

出　　处：《大学化学》2024年第3期336-344,共9页University Chemistry

基　　金：江苏省高等学校自然科学研究面上项目(21KJB430007);苏州市产业前瞻与关键核心技术项目(SYC2022150);2020年苏州科技大学校级一流专业建设点项目;2022年苏州科技大学本科品牌专业建设点项目。

摘　　要：聚苯胺作为最受关注的导电高分子材料之一,在诸多领域均有广泛应用。聚苯胺的化学合成实验是材料化学及相关专业实验教学中的代表性实验,然而,该实验存在诸多不足,如产物性质对溶剂的选择、掺杂剂类型、反应时间、温度等条件高度敏感,表征手段单一,产率不稳定且重现性差等。本实验是对“聚苯胺化学合成”实验的改进,将原实验中化学合成法更改为电化学合成法,同时结合了仪器分析实验“循环伏安分析法”和开放性实验“防腐涂料的制备”等相关课程实验,巧妙地将其从一个验证性制备实验改进为一个集制备条件自主选择及防腐性质测试为一体的创新设计实验,使学生连贯地学习聚苯胺的合成、掺杂及相关的电化学知识,对导电高分子的广泛应用有更清晰的认识。本改进实验内容丰富,更贴合现代化学及材料学科发展,有助于学生将多门课程中的理论知识融会贯通,提升综合技能。Polyaniline,as one of the most widely studied conductive polymer materials,has been widely used in many fields.The chemical synthesis experiment of polyaniline is a representative experiment in the teaching of materials chemistry and related subjects.However,this experiment has several shortcomings,such as the high sensitivity of product properties to solvent selection,dopant types,reaction time,temperature,limited characterization methods,unstable yield,and poor reproducibility.This experiment is an improvement of the“Chemical Synthesis of Polyaniline”experiment,where the original chemical synthesis method is replaced with an electrochemical synthesis method.It combines instrumental analysis experiments such as“Cyclic Voltammetry Analysis”and open-ended experiments such as“Preparation of Anticorrosive Coatings”to transform it from a confirmatory preparation experiment to an innovative design experiment that integrates autonomous selection of preparation conditions and testing of anticorrosive properties.This allows students to learn the synthesis,doping,and related electrochemical knowledge of polyaniline in a coherent manner,leading to a clearer understanding of the wide-ranging applications of conductive polymers.This improved experiment is rich in content and better aligns with the development of modern chemistry and materials science,helping students integrate theoretical knowledge from multiple courses and enhance their comprehensive skills.

关 键 词：聚苯胺 电化学合成 掺杂 防腐蚀 

分 类 号：G64[文化科学—高等教育学] O6[文化科学—教育学]