Fluorescent liquid crystal monomer and polymer containing α-cyano-stilbene structure and preparation method thereof

A technology containing cyano stilbene and liquid crystal monomers, applied in liquid crystal materials, chemical instruments and methods, luminescent materials, etc., can solve the problems of increasing the complexity and difficulty of devices, poor film-forming properties of small molecular materials, etc.
CN110256329BActive Publication Date: 2022-04-15SUZHOU UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SUZHOU UNIV
Publication Date
2022-04-15

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Abstract

The invention discloses a fluorescent liquid crystal monomer and a polymer containing an α-cyano-stilbene structure and a preparation method thereof. Firstly, a fluorescent liquid crystal monomer containing α-cyano-stilbene structure is obtained through a series of syntheses. Since there is a norbornene structure in the monomer structure, the ROMP method can be used to quickly obtain the target polymer. The fluorescent liquid crystal monomer provided by the present invention can produce multiple fluorescent response behaviors under force, temperature and solvent; the fluorescent liquid crystal polymer provided can regulate the liquid crystal phase structure of the polymer by regulating the substitution position and number of alkyl chains, Thereby changing the fluorescent properties of polymers; under 365 nm and 254 nm UV light, fluorescent liquid crystal monomers and polymers can achieve reversible changes in fluorescence, which are suitable for microelectronics and chemical sensing, functional soft materials and other fields.
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Description

technical field

[0001] The invention relates to a monomer, a polymer and a preparation method of a cyano-stilbene derivative. Background technique

[0002] Stimuli-responsive materials undergo reversible changes in structure, phase state, electrical, magnetic, mechanical, etc. response behavior when external stimuli are applied or removed (e.g., changing temperature, ionic strength, pH, electric field, magnetic field, force field), These materials have potential smart applications in sensors, actuators, electro-optic devices, etc. (see literature: J. Mater. Chem., 2008, 18, 5011-5018). Among the many materials, stimuli-responsive fluorescent materials have attracted the attention of researchers due to their sensitive signal and easy imaging characteristics (see literature: ACS Appl. Mater. Interfaces 2015, 7, 9904-9910).

[0003] As a new type of stimuli-responsive fluorescent material, α-cyano-stilbene derivatives can exhibit multiple fluorescence response behaviors and ag...

Claims

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