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A preparation method of a two-dimensional conjugated organic framework material connected by a carbon-carbon double bond

An organic framework and two-dimensional conjugation technology, which is applied in the field of preparation of two-dimensional conjugated organic framework materials, can solve the problems of limited monomers and achieve good thermal stability, uniform pore structure, and high crystallinity.

Active Publication Date: 2022-06-07
SHANGHAI JIAOTONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, currently there are very limited monomers that can be synthesized into two-dimensional COFs linked by unsubstituted carbon-carbon double bonds.

Method used

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  • A preparation method of a two-dimensional conjugated organic framework material connected by a carbon-carbon double bond
  • A preparation method of a two-dimensional conjugated organic framework material connected by a carbon-carbon double bond
  • A preparation method of a two-dimensional conjugated organic framework material connected by a carbon-carbon double bond

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Embodiment Construction

[0036] The following describes several preferred embodiments of the present invention with reference to the accompanying drawings, so as to make its technical content clearer and easier to understand. The present invention can be embodied in many different forms of embodiments, and the protection scope of the present invention is not limited to the embodiments mentioned herein.

[0037] The crystal structure of the two-dimensional covalent organic framework with two carbon-carbon double bonds in the present invention is determined by powder X-ray diffraction and analyzed by theoretical simulation.

[0038]The porous structure of the two-dimensional covalent organic framework connected by two carbon-carbon double bonds in the present invention is characterized by nitrogen adsorption and desorption test (Quantachrome autosorb iQ3 series automatic physical and chemical adsorption instrument): the obtained characterization results include nitrogen adsorption Desorption isotherms, ...

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Abstract

The invention discloses a preparation method of a two-dimensional conjugated organic framework material connected by a carbon-carbon double bond, which comprises the following steps: Step 1: In a glove box of an argon atmosphere, the reaction monomer 2,4,6-three Methyl-pyrylium tetrafluoroborate, 1,3,5-tris(4-formylbiphenyl)-1,3,5-triazine, solvents anhydrous n-butanol and o-dichlorobenzene and catalyst Add p-toluenesulfonic acid monohydrate into the ampoule; Step 2: Seal the ampoule with butane combustible gas, transfer the ampoule to a constant temperature oven for heating reaction; Step 3: After the heating reaction, wait for the ampoule to cool , collect the precipitate by suction filtration, wash the precipitate, and dry to obtain the organic framework material ivCOF‑O, and further react to obtain vCOF‑N. The COFs material has high crystallinity, high specific surface area, uniform pore structure, absorption in the visible light range, excellent thermal stability and uniform two-dimensional layered morphology.

Description

technical field [0001] The invention relates to the technical field of covalent organic framework materials, in particular to a preparation method of a two-dimensional conjugated organic framework material connected by carbon-carbon double bonds. Background technique [0002] Conjugated organic frameworks (COFs) are a class of materials composed of light elements (C, H, O, N, B, etc.) connected by covalent bonds in two-dimensional or three-dimensional space, controlled by thermodynamics. A class of porous organic materials with long-range ordered structure and regular pore structure formed by the reversible polymerization of . In 2005, Yaghi's group reported the first two-dimensional COF based on boronate linkages (Science, 2005, 310, 1166-1170). With order and regularity, as well as the diversity of covalent bond forms, COFs have incomparable advantages over other traditional porous materials such as molecular sieves, porous polymers, metal-organic frameworks (MOFs), etc.,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G61/12
CPCC08G61/122C08G2261/12C08G2261/18C08G2261/3221C08G2261/3222C08G2261/72C08G2261/592
Inventor 张帆张子星毕帅孟凡成吴东清
Owner SHANGHAI JIAOTONG UNIV