Pyrrolopyrrole monoketotetrabenzene analogue polymer, preparation method and applications thereof

Abstract

The invention discloses a pyrrolopyrrole monoketotetrabenzene analogue polymer, which is a conjugated polymer taking a pyrrolopyrrole monoketotetrabenzene analogue as a module. According to the invention, a novel pyrrolopyrrole monoketotetrabenzene analogue is synthesized through a simple method, and polymers with three types of structures are synthesized by a simple stile coupling polymerizationmethod; compared with other acene structures, the synthesized acene analogue polymer has high yield, has a larger conjugated structure compared with pyrrolopyrrole, and is beneficial to hole transport; and the pyrrolopyrrole monoketotetrabenzene analogue polymer has potential application prospects in the fields of organic field effect transistors (OFET) and organic solar cells (OPV).

Description

technical field [0001] The present invention relates to the technical field of organic semiconductor synthesis, and more specifically, to a pyrrolopyrrole monoketonaphthacene analogue polymer and its preparation method and application. Background technique [0002] Diketopyrrolopyrrole derivatives are a very important class of organic semiconductor materials due to their large planar structure, low LUMO energy level, and high air stability. At present, the modification of diketopyrrolopyrrole is mainly the modification of the alkyl group by the amide or the modification of different conjugated groups at the position of the double bond. There is no report on the modification of the alkyl chain on one side of the amide bond and the ring-closing modification on the other side, and the existing The technology has disadvantages such as low yield and complex reaction steps. Therefore, it is of great significance to use the existing diketopyrrolopyrrole as a raw material to modify...

AI Technical Summary

Problems solved by technology

At present, the modification of diketopyrrolopyrrole is mainly the modification of the alkyl group by the amide or the modification of different conjugated groups at the position of the double bond. There is no report on the modification of the alkyl chain on one side of the amide bond and the ring-closing modification on the other side, and the existing The technology has disadvantages such as low yield and complicated reaction steps.

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