A polymer with aggregation-induced luminescent effect and its preparation method

An aggregation-induced luminescence and polymer technology, applied in the field of luminescent polymer materials, can solve the problems that have not been reported in the field of polymer synthesis, and achieve excellent aggregation-induced luminescence effect, strong operability, and simple preparation process

Active Publication Date: 2019-02-19
CHINA UNIV OF PETROLEUM (EAST CHINA)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For nearly a hundred years, the Barbier reaction has played an important role in the field of organic chemistry, but its application in the field of polymer synthesis has not been reported yet

Method used

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  • A polymer with aggregation-induced luminescent effect and its preparation method
  • A polymer with aggregation-induced luminescent effect and its preparation method
  • A polymer with aggregation-induced luminescent effect and its preparation method

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preparation example Construction

[0049] The above-mentioned preparation method of a polymer with aggregation-induced luminescence effect, the reaction monomer is 4-bromo-benzophenone, and the one-pot Barbier self-condensation polymerization reaction is adopted, and the prepared polymer has better aggregation-induced luminescence effect , including the following preparation process:

[0050]

[0051] (1) Synthesis of crude polymer products

[0052] Take magnesium chips 1.2 times the amount of 4-bromo-benzophenone and add them to a double-necked flask with a rubber stopper on the branch, connect the condenser tube and the exhaust joint in turn, and apply vacuum grease to each joint to ensure airtightness Good performance, repeat the process of vacuuming, blowing, cooling, and nitrogen gas three times, and finally connect the nitrogen balloon to ensure that the system is anhydrous and nitrogen atmosphere. Inject 10-40mL solvent from the rubber stopper, under magnetic stirring, disperse the magnesium chips ev...

Embodiment 1

[0061] The present embodiment provides a kind of 4-bromo-benzophenone barbier self-condensation polymerization to prepare the method for macromolecule, comprises the steps:

[0062] (1) Synthesis of crude polymer products

[0063] Take a 100mL double-necked flask, coat the mouth with vacuum grease, plug it with a rubber stopper, and wrap it tightly with insulating tape to ensure good airtightness. Add magnesium chips (0.288g, 0.012mol) into the double-necked flask from the straight mouth, add magnets, and connect the condenser tube and straight air extraction joint in sequence (all joints need to be coated with vacuum grease and clamped with plastic clips). Repeat the process of evacuating, blowing, cooling, and passing nitrogen three times. After passing the nitrogen gas for the last time, close the straight-shaped air extraction joint, connect a balloon filled with nitrogen gas, and then open the plug of the straight-shaped air extraction joint to make the nitrogen gas comm...

Embodiment 2

[0069] The present embodiment provides a kind of 4-bromo-benzophenone barbier self-condensation polymerization to prepare the method for macromolecule, comprises the steps:

[0070] (1) Synthesis of crude polymer products

[0071] Take a 100mL double-necked flask, coat the mouth with vacuum grease, plug it with a rubber stopper, and wrap it tightly with insulating tape to ensure good airtightness. Add magnesium chips (0.288g, 0.012mol) into the double-necked flask from the straight mouth, add magnets, and connect the condenser tube and straight air extraction joint in sequence (all joints need to be coated with vacuum grease and clamped with plastic clips). Repeat the process of evacuating, blowing, cooling, and passing nitrogen three times. After passing the nitrogen gas for the last time, close the straight-shaped air extraction joint, connect a balloon filled with nitrogen gas, and then open the plug of the straight-shaped air extraction joint to make the nitrogen gas comm...

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Abstract

The invention discloses a novel polymer with aggregation-induced luminescent effect and a preparation method thereof, in particular to a method for preparing a polymer by Barbier type condensation polymerization, using 4-bromo-benzophenone as a monomer, in the presence of magnesium , a one-pot Barbier self-condensation polymerization reaction occurs, and polymers with better aggregation-induced luminescence effects are prepared. The method has simple synthesis process and strong operability, and can prepare polymer materials with aggregation-induced luminescence effect at low cost and mildly, opening up a new world of introducing aggregation-induced luminescence effect into widely used polymer materials.

Description

technical field [0001] The invention relates to the technical field of luminescent polymer materials, in particular to a polymer with an aggregation-induced luminescence effect and a preparation method thereof, in particular to a method for preparing a polymer by Barbier type condensation polymerization. Background technique [0002] Fluorescent materials play a very important role in the research of sensors and photoelectric functional devices, but most fluorescent materials only have strong fluorescence in solution, and the fluorescence is weakened or even quenched in the aggregated state. In 2001, Tang Benzhong et al. discovered a compound with aggregation-induced emission (AIE) effect, which can effectively avoid aggregation-caused quenching (ACQ), which provides a basis for the design of solid-state materials with high fluorescence quantum yield. It provides a new way of thinking and opens up a new research direction for the development of new luminescent materials. At...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G61/02C09K11/06
CPCC08G61/02C08G2261/11C08G2261/1422C08G2261/148C08G2261/3424C08G2261/522C09K11/06C09K2211/1425
Inventor 万文明刘东明田娣吕新虎李康康
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)
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