Azobenzene polypeptide block copolymer and preparation method and application thereof

Abstract

The invention discloses an azobenzene polypeptide block copolymer, a preparation method thereof and application thereof. One block of the azobenzene polypeptide block copolymer is an azobenzene radical-containing polymer and one block of the azobenzene polypeptide block copolymer is a polypeptide shown as the formula, wherein the number of methylene in an azobenzene radical is x which is equal to 2 to 9. The preparation method of the azobenzene polypeptide block copolymer comprises the following steps of: preparing the azobenzene radical-containing polymer, namely a homopolymer, by an atom transfer radical polymerization method; preparing the polypeptide by homopolymerizing an amino acid or an amino acid derivative compound; and connecting the azobenzene radical-containing polymer and the polypeptide through a click chemistry process to form the azobenzene polypeptide block copolymer. The method has the advantage that the azobenzene polypeptide block copolymer with a novel structure is prepared by the preparation method which is simple and feasible and in which the advantages of the click chemistry are fully used; and the azobenzene polypeptide block copolymer can be applied in the fields of non-linear optical materials and special photoresponse and storage devices and has wide application prospect.

Description

technical field [0001] The invention relates to the technical field of compound synthesis and its preparation, in particular to the preparation of an azobenzene functional polypeptide block copolymer. Background technique [0002] In recent years, the special optical properties of azobenzene functional polymers have aroused widespread interest of researchers. This is mainly because azo polymers have photocis-trans isomerism properties, are an important class of photochromic polymers, and have great application potential in the storage medium of erasable and rewritable optical discs. On the other hand, although the current research on organic nonlinear optical materials mainly focuses on organic polymers with push-pull electronic structures and intramolecular charge transfer, azo polymers have excellent photoelectric properties and are a good class of non-linear optical materials. Linear optical chromophores, because materials containing azo polymers will have properties suc...

AI Technical Summary

Problems solved by technology

There are many reports about azobenzene-containing block copolymers, but there are very few reports on the preparation of azobenzene-functional polypeptide block copolymers, mainly because the synthesis of azobenzene-containing block Peptide blocks are synthesized using different polymerization methods

The synthesis process of preparing peptide blocks is complicated, monomers are difficult to synthesize, and other block copolymers are difficult to obtain azobenzene functional peptide block copolymers through ordinary modification

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