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Eutectic material with flexibility and optical driven shape change characteristic and preparation method thereof

A technology of eutectic materials and deformation characteristics, applied in the fields of luminescent materials, chemical instruments and methods, organic chemistry, etc., to achieve the effect of excellent performance

Inactive Publication Date: 2019-03-22
BEIJING NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the continuous development of supramolecular self-assembly chemistry, people adjust the photophysical properties of molecular crystals by rationally designing the interaction mode between organic crystalline molecules. Light-stimuli-responsive flexible materials at scale remain challenging

Method used

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  • Eutectic material with flexibility and optical driven shape change characteristic and preparation method thereof
  • Eutectic material with flexibility and optical driven shape change characteristic and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] 1. Weigh 2.313g of 4-(1-naphthylethylene)pyridine and dissolve it in 100mL of methanol solvent, and obtain solution A after fully dissolving by ultrasonic;

[0024] 2. Another 2.381g of 2,3,5,6-tetrafluoroterephthalic acid was dissolved in 100mL of methanol solvent, and the solution B was obtained after the ultrasonic solution was fully dissolved;

[0025] 3. Mix solutions A and B evenly, place them in a dark environment, and after standing still for 1 week, you can get the eutectic compound of 4-(1-naphthylethylene)pyridine and tetrafluoroterephthalic acid.

[0026] To characterize the product,

[0027] From single crystal diffraction analysis, it can be seen that 4-(1-naphthalene vinyl)pyridine and tetrafluoroterephthalic acid form a co-crystal product with a network structure through proton transfer to form intermolecular hydrogen bonds;

[0028] Under the stimulation of external mechanical force, the eutectic compound material has flexible characteristics on the ma...

Embodiment 2

[0030] 1. Weigh 4.626g of 4-(1-naphthylethylene)pyridine and dissolve it in 200mL of methanol solvent, and obtain solution A after fully dissolving by ultrasonic;

[0031] 2. Another 4.762g of 2,3,5,6-tetrafluoroterephthalic acid was dissolved in 200mL of methanol solvent, and the solution B was obtained after the ultrasonic solution was fully dissolved;

[0032] 3. Mix solutions A and B evenly, add 50 mL of deionized water under ultrasonic conditions, and perform centrifugation to obtain the eutectic compound of 4-(1-naphthaleneethylene)pyridine and tetrafluoroterephthalic acid.

[0033] To characterize the product,

[0034] From single crystal diffraction analysis, it can be known that 4-(1-naphthylethylene)pyridine and 2,3,5,6-tetrafluoroterephthalic acid undergo proton transfer and form a new crystalline substance through intermolecular hydrogen bond interaction;

[0035] Under the irradiation of the ultraviolet light mode of the fluorescence microscope, it can be seen th...

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Abstract

The invention discloses a eutectic material with flexibility and an optical driven shape change characteristic and a preparation method thereof. By selecting an organic matter with a carboxyl group asa eutectic unit, a 4-(1-naphthalene ethylene) pyridine and 2,3,5,6-tetrafluoroterephthalic acid eutectic material is prepared by adopting a liquid phase method. The eutectic material has the advantages that a novel eutectic substance is formed by selecting an organic matter transferring protons with naphthalene ethylene pyridine and having a non-covalent bond acting force (for example, a hydrogenbond, pi-pi interaction and the like), so that the spatial arrangement of single component naphthalene ethylene pyridine forming a molecular solid is changed, bi-component eutectic molecules with flexibility are obtained, and the characteristic of optical driving under ultraviolet irradiation is generated. The naphthalene ethylene pyridine novel organic solid flexible material and the optical driving material are obtained by reasonably designing and selecting a solvent, and meanwhile, the application value of the compositions in the field of flexible light-emitting materials is expanded.

Description

technical field [0001] The invention belongs to the technical field of functional molecular materials, in particular to a eutectic material with flexibility and light-driven deformation characteristics and a preparation method thereof. Background technique [0002] Light-driven smart responsive materials have broad application prospects in molecular machines, mechanical brakes, smart switches, sensors, etc., and have attracted extensive attention from researchers. Vinyl organic materials with conjugated units are of great research interest in terms of optical, electronic, and mechanical properties due to their cis-trans isomerization and photopolymerization behavior. With the continuous development of supramolecular self-assembly chemistry, people adjust the photophysical properties of molecular crystals by rationally designing the interaction mode between organic crystalline molecules. Light-stimuli-responsive flexible materials at scales remain somewhat challenging. Ther...

Claims

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Application Information

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IPC IPC(8): C07D213/16C07D213/127C07C51/43C07C63/68C09K11/06
CPCC07D213/127C07D213/16C09K11/06C09K2211/1007C09K2211/1029
Inventor 闫东鹏李树珍
Owner BEIJING NORMAL UNIVERSITY