Aniline polymerization delayed-action activator

Abstract

An aniline polymerization delayed agent and polyaniline formula are disclosed. The molecular structure of the delayed agent is benzene ring compound and its derivative, the formula consists of aniline monomer, oxidant, proton acid, delayed agent and solvent, their binary substituting group can be amine radical, hydroxyl radical, lyophobic radical or their mixture separately. It has controllable reactive speed.

Description

technical field [0001] The invention provides a reaction retarder, especially a retarder used in aniline polymerization reaction, which can delay and control the rate of aniline polymerization reaction. Background technique [0002] In 1862, Letherbyl used electrochemical methods to observe the growth of blue-green powder on the platinum electrode in the aqueous solution of aniline. This was the earliest conductive polymer synthesized, but its properties were not clear at that time, so it was named Aniline black (Aniline black) is called. In 1986, the research group of Pennsylvania State University in the United States used the polyaniline polymerized by the protonic acid medium and the oxidant to make the conductivity from 10 to 10. -11 S / cm increased to 10S / cm. In 1994, MacDiarmid proposed that the conductivity of polyaniline could be increased to 200S / cm by doping with small molecule organic acid CSA (Camphorsulfonic acid, camphorsulfonic acid). The discovery of this hi...

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Problems solved by technology

[0004] Although polyaniline is an organic conductor material with the advantages of low price, environmentally friendly process and high stability, its solubility is extremely poor and it is not easy to dissolve in solvents, so it is difficult to process

Generally, the mixture of monomer and oxidant is polymerized directly on the substrate, but the polymerization rate is too fast, which causes many problems in its application.

For example, its application on electrolytic capacitors, please refer to Figure 1A ~B, which is a schematic diagram of the pores left in capacitor 1 because the aniline polymerization rate is too fast resulting in poor coverage

The positive electrode of the capacitor is a high surface area porous structure (refer to Figure 1A ), the size of the micropores 11 of the dielectric oxide film is about 50nm to 2um. If the polyaniline 2 is produced by direct polymerization on the pores, the too fast polymerization rate (the polymerization is completed in about a few minutes) will make the aniline monomer It is too late to penetrate into the micropores 11 of the dielectric oxide film, resulting in poor coverage of the conductive polymer and leaving pores 111 (please refer to Figure 1B ), which affects the capacity and impedance characteristics

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