A method for the homogeneous preparation of covalent organic framework materials using high pressure

A technology of covalent organic framework and high-pressure homogenization, applied in chemical instruments and methods, and other chemical processes, can solve the problems of large amount of organic solvent usage, long synthesis time, complex process, etc., and achieve short reaction time and low cost , the effect of simple operation
CN113024828BActive Publication Date: 2022-05-06NANKAI UNIV
7 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
NANKAI UNIV
Publication Date
2022-05-06

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

A method for homogeneously preparing covalent organic framework materials under high pressure. The synthesis method is at normal temperature and pressure, using common organic ligands as raw materials, water or organic reagents as solvents and templates, and organic acids and inorganic acids as catalysts. , the method of obtaining the corresponding COFs by homogenizing with a high-pressure homogenizer for a certain period of time. Add 2,4,6-trihydroxy-1,3,5-benzenetricarbaldehyde and p-phenylenediamine in a beaker, add appropriate amount of water and acetic acid, mix well and add to a high-pressure homogenizer to homogenize for a certain period of time; After the qualitative reaction, the product powder was suction-filtered, and the filtrate was recycled for reuse. The product powder was washed and vacuum-dried to obtain the covalent organic framework material HPH-Tp-Pa-1. Compared with other COFs preparation methods, the present invention has the advantages of continuous reaction, simple operation, low cost, high yield, environmental protection and energy saving, short reaction time, etc., has the potential for large-scale production, and will greatly promote the industrial production process of COFs materials.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention belongs to the technical field of macromolecular organic porous materials, and in particular relates to a method for homogeneously preparing covalent organic framework materials by using high pressure. Background technique

[0002] Covalent organic framework (COFs) is a kind of light elements such as C, H, O, N, B connected by reversible covalent bonds (such as C-N, C-O, B-O, C-N, etc.) Crystalline and periodic 2D or 3D organic porous materials. Due to the advantages of low density, easy functional modification, regular structure, adjustable pore structure, and large specific surface area, this type of material has attracted extensive attention from scientific researchers. It has broad application prospects.

[0003] Covalent organic frameworks are ordered porous crystalline materials formed by thermodynamically controlled reversible or irreversible polymerization, often prepared by thermodynamic reactions. At present, the main prepara...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More