A monomer, a two-dimensional material and its preparation method and application

A two-dimensional material and monomer technology, applied in the preparation of carboxylate, chemical instruments and methods, preparation of hydroxyl compounds, etc., can solve problems such as lack of structural adjustability, and achieve low production cost, easy availability of raw materials, flexible internal effect of structure

Active Publication Date: 2018-04-10
HUBEI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Fully covalent cross-linking makes the two-dimensional material structure too rigid, lacking structural adjustability, codability and self-repairability

Method used

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  • A monomer, a two-dimensional material and its preparation method and application
  • A monomer, a two-dimensional material and its preparation method and application
  • A monomer, a two-dimensional material and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] A kind of preparation method of monomer, its step is:

[0049] 1) Add 4.1g catalyst CuCl, 6.3mL tetramethylethylenediamine (TMEDA) and 50mL propynyl alcohol to the open reaction vessel A, heat the open reaction vessel A to 30°C (±10°C) while stirring the reaction The mixed system in the container, after the reaction is completed, add ether, and wash with saturated NH4Cl and NaCl solution to obtain a yellow organic solution, concentrate the organic solution to obtain a concentrated solution, then dissolve the concentrated solution in hot ethyl acetate, cool and crystallize , that is, 34.7 g of hexadiynediol was obtained, the yield was 73%, and the melting point was 112° C., which was consistent with the standard melting point. Bihexadiynediol is a known compound, and the synthetic steps are referenced in literature (W.R.Roush, M.L.Reilly, K.Koyama, B.B.Brown, J.Org.Chem. 1997, 62, 8708-8721).

[0050] 2) Weigh 2.25g of bihexadiynediol, add 2.25g of bihexadiynediol and 1...

Embodiment 2

[0067] Taking the two-dimensional material (nanoscale thin film) prepared in Example 1 as an example to carry out the anti-electron beam bombardment test of the two-dimensional material, the use of the two-dimensional material is explained

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Abstract

The invention discloses a monomer, a two-dimensional material, and a preparation method and application thereof. The structural general formula of the monomer is disclosed in the specification. The preparation method of the monomer comprises the following steps: 1) carrying out oxidation coupling reaction on the terminal alkyne part of propiolic alcohol or allylene amine or allylene mercaptan to generate bialkynes; and 2) carrying out esterification reaction on cyclic acid anhydride and abundant bialkynes to generate the monomer. The structure of the two-dimensional material repetitive unit is disclosed in the specification. The preparation method of the two-dimensional material comprises the following steps: 1) carrying out self-assembly on the monomer to obtain laminated-structure crystal, wherein the structure of the repetitive unit is disclosed in the specification; 2) carrying out polymerization reaction on the dialkynyl group to generate a polymer material; and 3) peeling the polymer material to obtain a nano-size-thick two-dimensional material. The monomer has a linear structure. The preparation method of the monomer is simple. The two-dimensional material has the nano-size thickness, and the horizontal scale exceeds micron size. The preparation method of the two-dimensional material is simple, and has the advantage of mild conditions for polymerization reaction. The two-dimensional material can be used for preparing an electron-beam-impact-resistant material.

Description

technical field [0001] The invention relates to the technical field of functional materials, in particular to a monomer, a two-dimensional material, a preparation method and application thereof. Background technique [0002] In 2004, the Geim group of the University of Manchester in the United Kingdom stripped graphene from graphite, and two-dimensional materials quickly became a research hotspot in the world. Subsequently, in addition to graphene, boron nitride, transition metal sulfides, oxides, black phosphorus, etc. Two-dimensional materials have also been fabricated. The thickness of the two-dimensional material is nanoscale, and the material has a long-range ordered structure in the two-dimensional plane. Due to the quantum localization effect in the two-dimensional scale, this type of material has many application prospects in electronics and optoelectronics. In 2009, on the concept of two-dimensional materials, the Schlüter group of the Swiss Federal Institute of T...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G83/00C08F299/00C08F138/00C07C67/08C07C69/533
CPCC07C29/32C07C67/08C08F138/00C08F299/00C08G83/00C07C31/20C07C69/533
Inventor 黎明宋梦瑶
Owner HUBEI UNIV
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