Method for preparing multiple-stimulation respond material containing thienylmaleimide by virtue of two-step process

A multi-stimulus response, maleimide technology, applied in luminescent materials, color-changing fluorescent materials, chemical instruments and methods, etc., can solve the problem of lack of sufficient understanding of the piezochromic mechanism, and achieve high solid-state fluorescence quantum efficiency. , the synthesis steps are simple, and the thermal stability is good.
CN103484104AInactive Publication Date: 2014-01-01FUJIAN NORMAL UNIV
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
FUJIAN NORMAL UNIV
Publication Date
2014-01-01
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a method for preparing a multiple-stimulation respond material by virtue of a two-step process. The method comprises the following steps: putting maleimide into a reaction bottle, adding N,N-dimethylformamide and a halogenating reagent, heating until the temperature reaches 58 DEG C for reacting for 48-72 hours, and adding water and dichloromethane sequentially for suction filtration to obtain 3,4-dihalogenmaleimide; putting 3,4-dihalogenmaleimide and a palladium bis(triphenylphosphine) dichloride catalyst into a flask, vacuumizing, then filling the flask with nitrogen, injecting anhydrous N,N-dimethylformamide and 2-(tributylstannyl)thiophene, increasing the temperature to 100 DEG C for reacting for 12 hours, cooling, then adding the mixed solution of dichloromethane and saturated potassium fluoride aqueous solution, then extracting, drying, filtering and purifying through column chromatography to obtain 3,4-bis(2'-thienyl)maleimide. The material prepared by the method provided by the invention has the advantages of good heat stability, simple synthesis steps, high solid-state fluorescent quantum efficiency and the like, and also has the properties of piezallochromy, thermochromism, solvent induced chromism and the like.
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Description

technical field

[0001] The invention relates to a two-step method for preparing multiple stimulus response materials, in particular to multiple stimulus response materials containing thienylmaleimide and a preparation method thereof. Background technique

[0002] In recent years, organic solid fluorescent materials have attracted the interest of many researchers due to their great application potential in photoelectric functional materials (Shuaijun Yang, Research Progress in Organic Solid Fluorescent Materials, 2013; Anthony, ChemPlusChem, 2012, 77, 518 ). With the deepening of people's research, it is found that some materials can only change the interaction between molecules without destroying the molecular structure, and can achieve different responses to external stimuli. Among them, stimuli-responsive fluorescent conversion materials (aerochromic, thermochromic and piezochromic materials) are of great significance for the development of information storage, optical re...

Claims

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