A kind of quinone conjugated polymer and its preparation method and application

Abstract

The invention relates to a quinoid conjugated polymer, a preparation method and application thereof. The quinoid conjugated polymer is a novel quinoid structure polymer connected by C=C double bonds and has good electrical conductivity. , the monomer used in the preparation of the quinoid conjugated polymer contains at least two carbonyl groups, the preparation method is simple, and the conductive properties can be exhibited without oxidation treatment or doping, the preparation process is fast and convenient, and can be applied to optoelectronic devices , has high application value.

Description

technical field [0001] The invention relates to the field of organic photoelectric materials, more specifically, to a quinone conjugated polymer and its preparation method and application. Background technique [0002] In recent decades, with the continuous development of new semiconductor devices and integrated circuit technology, research on semiconductor materials has become more and more in-depth. Among them, conductive polymers have become a research hotspot of semiconductor materials because they have the properties of ordinary polymers, can prepare foldable and curved devices, and have good film-forming properties. Conductive polymers are commonly used in electrical devices such as batteries, capacitors, electronic sensors, antistatic coatings, EMI protection, anti-corrosion coatings on metals, lithography, circuit boards, organic light-emitting diodes, solar cells, and field effect transistors. [0003] Most organic polymers are insulators or semiconductors, and som...

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Problems solved by technology

[0006] In order to obtain quinone structure polymers with higher conductivity, there are currently many related researches. For example, Adv.Sci, 2018, 5, 1800947 reported a method for synthesizing a polythiophene derivative. After the polymer is doped, When the temperature is nearly 100 degrees Celsius, the conductivity of the doped polymer is greatly improved; TW201841921 reported a quinone structure organic semiconductor substituted by dicyanomethylene materials, but the synthesis of such compounds is complicated, the final aromatic structure must be converted into a quinone structure by introducing dicyanomethylene capping, and the polymerization length of the molecule is limited. Through this synthesis process, the quinone structure cannot be obtained. polymer; WO9622317 reported a method for synthesizing polypyrrole and obtaining high conductivity by doping, and the polypyrrole monomer obtained by this method is linked by a C-C single bond, and the polymer can become a conductive polymer only after doping ; JP2017206649 reported an organic semiconductor material containing a quinone structure fragment, which proved that the quinone structure can greatly reduce the energy gap of the molecule and enhance its charge transfer performance

[0007] But so far, it is usually the case that the aromatic structure is oxidized to obtain a quinoid conjugated polymer, and the preparation process is complicated, and there is no report about a quinoid polymer linked by a C=C double bond.

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