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Organic conjugated polymer as well as preparation method and application thereof

A technology of conjugated polymers and polymers, applied in organic compound/hydride/coordination complex catalysts, chemical instruments and methods, inorganic chemistry, etc., can solve the problem of poor hydrogen production rate and achieve high dispersion, The effect of good thermodynamic stability and high light absorption capacity

Active Publication Date: 2021-07-23
GUANGDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention provides an organic conjugated polymer to overcome the defect of poor photocatalytic hydrogen production rate

Method used

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  • Organic conjugated polymer as well as preparation method and application thereof
  • Organic conjugated polymer as well as preparation method and application thereof
  • Organic conjugated polymer as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Synthesis of Polymer P1

[0037] The synthetic route is as follows:

[0038]

[0039] Accurately weigh monomer M1 (1.000mmol, 0.3741g) and monomer M2 (0.500mmol, 0.4131g), add it to a 48mL thick-walled pressure-resistant bottle, and add Pd (pph 3 ) 4 (0.025mmol, 29mg), K 2 CO 3 (2mol / L, 2.5mL) and DMF (15mL), sealed. Under the condition of 150°C, the reaction was protected from light for 48h. After the reaction solution was cooled to room temperature, it was dropped into a constantly stirring methanol solution, and filtered to obtain a crude product. The crude product was subjected to Soxhlet extraction with 100 mL of methanol and petroleum ether for 24 hours each, and the residual solid was washed with methanol and dried in vacuum for 24 hours to obtain a brown powdery product P1 with a degree of polymerization of 4.

[0040] The photocatalyst of this example is composed of copolymer P1.

Embodiment 2

[0042] Synthesis of Polymer P2

[0043] A representative synthetic route is as follows:

[0044]

[0045] Accurately weigh monomer M1 (1.000mmol, 0.3741g) and monomer M3 (0.500mmol, 0.4292g), add it to a 48mL thick-walled pressure bottle, and add Pd (pph 3 ) 4 (0.025mmol, 29mg), K 2 CO 3 (2mol / L, 2.5mL) and DMF (15mL), sealed. Under the condition of 150°C, the reaction was protected from light for 48h. After the reaction solution was cooled to room temperature, it was dropped into a constantly stirring methanol solution, and filtered to obtain a crude product. The crude product was subjected to Soxhlet extraction with 100 mL of methanol and petroleum ether for 24 hours each, and the residual solid was washed with methanol and dried in vacuum for 24 hours to obtain a yellow powdery product P2 with a degree of polymerization of 4.

[0046] The photocatalyst of this example is composed of copolymer P2.

Embodiment 3

[0048] The preparation method is the same as in Example 2, the difference is that the monomer of M1 is replaced by the monomer of A2 A P3 conjugated polymer having a degree of polymerization of 50 was obtained.

[0049] The photocatalyst of this example is composed of copolymer P3.

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PUM

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Abstract

The invention discloses an organic conjugated polymer and a preparation method and application thereof. The organic conjugated polymer is obtained by adopting benzodithiophene or benzodifuran as a parent and a monomer through a Suzuki coupling reaction, and the polymer has a high planar conjugated structure, and has a good visible light absorption range and a large specific surface area and good dispersity in water. Therefore, the organic conjugated polymer has excellent performance of photocatalytic hydrogen production from water.

Description

technical field [0001] The invention relates to the technical field of photocatalytic hydrogen production from water, and more specifically relates to an organic conjugated microporous polymer and its preparation method and application. Background technique [0002] In recent years, with the continuous consumption of non-renewable resources such as oil, coal, and natural gas, as well as the environmental pollution caused by the combustion of fossil fuels, people have realized that the development of new clean and renewable energy is very important. Combining the inexhaustible and inexhaustible characteristics of solar energy and the advantages of clean and pollution-free hydrogen energy, high combustion value, and storage and transportation, the development of catalysts for photocatalytic hydrogen production from water has gradually entered people's field of vision. At present, the catalysts used for photolysis of water to produce hydrogen mainly include inorganic semiconduc...

Claims

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Application Information

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IPC IPC(8): C08G61/12B01J31/06B01J35/00C01B3/04
CPCC08G61/126B01J31/06C01B3/042C01B2203/0277C01B2203/1041C08G2261/124C08G2261/3242C08G2261/3243C08G2261/3246C08G2261/354C08G2261/411C08G2261/592B01J35/39Y02E60/36
Inventor 金耀城黄晓锋陈健王首明江永健陈俊浩姜雪霏
Owner GUANGDONG UNIV OF TECH
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