Preparation of pyrrole-aniline copolymer nanowires and their electrochemical performance
Pan, Yanzong (2021)
Pan, Yanzong
2021
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Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi:amk-2021072116825
https://urn.fi/URN:NBN:fi:amk-2021072116825
Tiivistelmä
This experiment mainly studies the reaction of pyrrole and aniline in the proportion of different amounts of substances and the reaction of changing the amount of substances of the initiator, through the analysis of the product and test its electrochemical performances.
In theory, polyaniline has the advantages of higher capacitance, easy preparation, doping and environmental friendliness, so it is considered as one of the most promising electrode materials. Polypyrrole has the characteristics of easy synthesis and excellent electrical conductivity. However, in the structure of polyaniline, the molecular chain rigidity is strong, the conductive stability of polypyrrole is poor, and the processing is difficult because it is neither soluble nor melted. Polymer copolymerization is an important modification method, which can synthesize the advantages of different monomers to obtain better performance of copolymer. In this experiment, pyrrole and aniline are used as raw materials. By changing the proportion of pyrrole and aniline in the experiment and the conditions of the amount of initiator, hydrochloric acid solution is mainly used as the solvent, p-phenylenediamine is mainly used as the initiator, and ammonium persulfate is mainly used as the oxidant. Under the condition of freezing, the reaction is carried out. The reaction has many advantages, such as: green environmental protection, in line with the concept of green chemistry, the efficiency is high. For this reaction, the initiators, oxidants and solvents used in the experiment were screened to obtain the most suitable conditions.
In theory, polyaniline has the advantages of higher capacitance, easy preparation, doping and environmental friendliness, so it is considered as one of the most promising electrode materials. Polypyrrole has the characteristics of easy synthesis and excellent electrical conductivity. However, in the structure of polyaniline, the molecular chain rigidity is strong, the conductive stability of polypyrrole is poor, and the processing is difficult because it is neither soluble nor melted. Polymer copolymerization is an important modification method, which can synthesize the advantages of different monomers to obtain better performance of copolymer. In this experiment, pyrrole and aniline are used as raw materials. By changing the proportion of pyrrole and aniline in the experiment and the conditions of the amount of initiator, hydrochloric acid solution is mainly used as the solvent, p-phenylenediamine is mainly used as the initiator, and ammonium persulfate is mainly used as the oxidant. Under the condition of freezing, the reaction is carried out. The reaction has many advantages, such as: green environmental protection, in line with the concept of green chemistry, the efficiency is high. For this reaction, the initiators, oxidants and solvents used in the experiment were screened to obtain the most suitable conditions.