Alkyl substituted-S,S-dioxo-dibenzothiophene monomer, preparation method and polymer thereof

Abstract

The invention discloses an alkyl substituted-S,S-dioxo-dibenzothiophene monomer, a preparation method and a polymer thereof. The presence of the strong electron-withdrawing group -SO2- in the alkyl substituted-S,S-dioxo-dibenzothiophene is favorable for improving the electron affinity of molecules, and the introduction of the alkyl greatly improves the dissolubility of the monomer in an organic solvent. The alkyl substituted-S,S-dioxo-dibenzothiophene monomer can form a homopolymer or a copolymer through the polymerization reaction of Suzuki, Stille and Yamamoto. The series of polymers have good dissolubility in the organic solvent, are suitable for processing solution, and have broad application prospects in the fields of organic flat displays, photovoltaic cells and organic field-effect tubes.

Description

technical field

[0001] The invention belongs to the technical field of photoelectric materials, in particular to a preparation method and application of a class of alkyl-substituted-S,S-dioxy-dibenzothiophene monomers and polymers thereof. Background technique

[0002] In the past two decades, the organic electronics and optoelectronics industries, including organic / polymer light-emitting diodes, organic field effect transistors, organic solar cells, nonlinear optics, biosensors and lasers, have developed rapidly and are gradually moving toward industrialization. Organic electronic products have the advantages of low price, light weight and portability, which make them have great market potential. Therefore, the development of market-attractive organic electronic products has attracted the attention and investment of many research institutions and scientific research teams in the world. Among them, the development of new efficient and stable materials has undoubtedly becom...

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