Synthetic method of brush type homopolymer and copolymer containing conjugate oligomeric branched chains

Abstract

The invention discloses a synthetic method of a brush type homopolymer and a brush type copolymer containing conjugate oligomeric branched chains. In the synthesis process of a novel monomer, a metal catalysis coupling reaction and an esterification reaction are adopted, so that conjugate alkene monomers such as oligo-containing polyfluorene, oligomeric benzene, oligomeric benzyne, oligomeric carbazole, oligomeric thiophene and the like are synthesized; and a way for grafting and grafting to is adopted, and radical polymerization (including atom transfer radical polymerization) are performed, so that a series of brush type homopolymers and copolymers with conjugate branched chains are obtained, homopolymerization, binary irregular copolymerization and block copolymerization, and ternary irregular copolymerization and block copolymerization of a monomer containing a conjugate branched chain are realized, and special brush type homopolymers and brush type copolymers are obtained. The synthetic method disclosed by the invention is simple, convenient and practicable; a synthesized brush type polymer has a controllable structure; and a three-dimensional structural design of a large molecular strain is realized, and combination of a conjugate structure and a brush type structure is realized, so that a polymer with excellent comprehensive performance is obtained.

Description

Technical field: [0001] The technical field of the present invention is the field of synthesis of new functional materials, in particular to a kind of synthetic polymer containing conjugated oligomeric branched chain brush type homopolymer and copolymer by free radical polymerization (including atom transfer radical polymerization) or free radical copolymerization resolve resolution. Background technique: [0002] Conjugated polymer materials have a series of special properties with great application potential, such as electroluminescence, high electrical conductivity after chemical doping, and nonlinear optics, making them widely used in organic light-emitting devices (OLEDs), field effect transistors, chemical and biological transmissions. There are broad application prospects in areas directly related to the information industry, such as sensing. [0003] Brush-type polymers have completely different performances from simple linear polymers in terms of spatial morphology...

AI Technical Summary

Problems solved by technology

From the perspective of polymer science, the structure of traditional graft copolymers is a bit like the so-called brush polymers. However, due to the constraints of graft copolymerization methods, it is mainly reflected in the different lengths of branch chains and the regularity of structure. Poor, and the regular branched chain of brush-type polymers will bring many unexpected special properties to such polymers

[0004] The commonly used synthesis method of conjugated polymer materials is to use coupling reactions to obtain macromolecules, such as Suzuki reaction, Stille reaction, Heck reaction, Sonogashira reaction, Wittig reaction, Yamamoto reaction, etc. These reaction conditions are harsh and molecular weight growth is very difficult. , the catalyst used in the reaction is very expensive

And the concept of realizing the three-dimensional structure design of the macromolecular chain to combine the conjugation and brush structure of the polymer to obtain a polymer with excellent comprehensive properties has not been used before.

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