Preparation method of chiral fluorescent nanoparticle based on hyperbranched conjugated polymer

Abstract

The invention discloses a preparation method of a chiral fluorescent nanoparticle based on a hyperbranched conjugated polymer. The method is characterized by comprising the following steps of: preparing a hyperbranched polymer containing 9,9-dioctylfluorene and a bithiophene unit into a trichloromethane solution of which the solubility is 1*10<-3> to 1*10<-1> mg/mL; and adding one of (R)-limonene or (S)-limonene into the trichloromethane solution of the copolymer together with methanol, and mixing uniformly to obtain a stable turbid solution, wherein the volume ratio of the (R)-limonene or (S)-limonene to the methanol to the copolymer is (1-8):(8-1):1. In the method, a solvent chiral transfer technology is applied to the preparation of a hyperbranched polymer chiral fluorescent nanoparticle with a hyperbranched polymer, so that the problems of high price of a chiral reagent, complex synthesis steps and the like existing in the conventional method for synthesizing the hyperbranched polymer chiral fluorescent nanoparticle are solved.

Description

technical field [0001] The invention relates to a preparation method of chiral fluorescent nanoparticles, in particular to a method for preparing chiral fluorescent nanoparticles based on the synthesis of hyperbranched conjugated polymers and a solvent chiral transfer method. Background technique [0002] Chiral conjugated polymers have attracted more and more attention due to their promising application prospects in the fields of chiral recognition, photopolarized fluorescence, chiral catalysis, and liquid crystal materials. At present, the synthesis methods of chiral conjugated polymers mainly include the polymerization of chiral monomers, the chiral modification of achiral polymers, the control of chiral templates, and supramolecular self-assembly. Most of these methods use expensive chiral reagents, and the types of chiral polymers synthesized are also very limited, which greatly restricts the development of chiral polymers. Therefore, if achiral polymers can be induced...

AI Technical Summary

Problems solved by technology

However, in the synthesis process, it is still necessary to use expensive chiral reagents to pre-synthesize chiral monomers, which is relatively expensive and the synthesis steps are relatively complicated.

The preparation of chiral nanoparticles by solvent chiral transfer technology using achiral hyperbranched conjugated polymer as a medium has not been reported yet.

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