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Citation: Li Jiang, Changzheng Chen, Yang Su, Hao Song, Yanmao Dong, Yan Yuan, Li Li. Electrochemical Synthesis of Polyaniline and Its Anticorrosive Application: Improvement and Innovative Design of the “Chemical Synthesis of Polyaniline” Experiment[J]. University Chemistry, ;2024, 39(3): 336-344. doi: 10.3866/PKU.DXHX202309002 shu

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

School of Chemistry and Life Sciences, Suzhou University of Science and Technology, Suzhou 215009, Jiangsu Province, China

Corresponding author: Li Jiang, jl@mail.usts.edu.cn
Received Date: 1 September 2023

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.
- Polyaniline,
- Electrochemical synthesis,
- Doping,
- Anticorrosion
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