Pyrylomethoxypolyethylene glycol, its preparation method and method for preparing pyrylopolyethylene glycol-based graphene dispersion liquid

A technology of methoxypolyethylene glycol and graphene dispersion liquid, which is applied in chemical instruments and methods, inorganic chemistry, non-metallic elements, etc., and can solve difficult chemical reactions of other substances, difficulty in research and application, and difficulty in dispersing, etc. problems, to achieve the effect of simple preparation process, low cost and wide sources

Active Publication Date: 2017-03-01
CHANGZHOU IND TECH RES INST OF ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Although graphene has many of the above-mentioned excellent properties, its surface is in an inert state and it is difficult to chemically react with other substances; at the same time, due to the planar conjugated structure of graphene, there is a strong π-π stacking interaction between graphene sheets It is easy to agglomerate and difficult to disperse in solvents, which brings great difficulties to its research and application

Method used

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  • Pyrylomethoxypolyethylene glycol, its preparation method and method for preparing pyrylopolyethylene glycol-based graphene dispersion liquid
  • Pyrylomethoxypolyethylene glycol, its preparation method and method for preparing pyrylopolyethylene glycol-based graphene dispersion liquid
  • Pyrylomethoxypolyethylene glycol, its preparation method and method for preparing pyrylopolyethylene glycol-based graphene dispersion liquid

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Effect test

Embodiment 1

[0040] Add the reaction solvent DMF into the reaction vessel, weigh 0.8g of 3,4,9,10-perylenetetracarboxylic dianhydride, 1.0g of methoxy hydroxyl-terminated polyethylene glycol (average molecular weight Mn=1000), 1.0g of triethylamine 200 microliters, adjust the oil bath temperature to 70°C, and react for 8 hours. After treatment, a multi-armed amphiphilic polymer perylene methoxypolyethylene glycol can be obtained;

[0041] Add 1 g of this multi-armed amphiphilic polymer and 2 g of graphene powder into water, and after ultrasonication for 1 hour, add water to dilute until the mass content of graphene powder is 0.2% to obtain a stably dispersed graphene solution.

Embodiment 2

[0043] Add the reaction solvent DMF into the reaction vessel, weigh 0.8g of 3,4,9,10-perylenetetracarboxylic dianhydride, 0.5g of methoxy hydroxyl-terminated polyethylene glycol (average molecular weight Mn=500), 0.5g of triethylamine 200 microliters, adjust the temperature of the oil bath to 60°C, and react for 8 hours. After the treatment, the multi-armed amphiphilic polymer perylene methoxypolyethylene glycol can be obtained;

[0044] Add 1 g of this multi-armed amphiphilic polymer and 1 g of graphene powder into water, and after ultrasonication for 1 hour, dilute with water until the mass content of graphene powder is 0.05% to obtain a stably dispersed graphene solution.

Embodiment 3

[0046] Add the reaction solvent DMF into the reaction vessel, weigh 0.8 g of 3,4,9,10-perylenetetracarboxylic dianhydride, 3 g of methoxyl hydroxyl-terminated polyethylene glycol (average molecular weight Mn=3000), 200 g of triethylamine microliter, adjust the temperature of the oil bath to 80°C, and react for 10 hours. After the treatment, the multi-armed amphiphilic polymer perylene methoxypolyethylene glycol can be obtained;

[0047] Add 1 g of this multi-armed amphiphilic polymer and 5 g of graphene powder into water, and after ultrasonication for 1 hour, add water to dilute until the mass content of graphene powder is 0.3% to obtain a stably dispersed graphene solution.

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Abstract

The invention relates to a pyrylomethoxypolyethylene glycol, its preparation method and a method for preparing a pyrylopolyethylene glycol-based graphene dispersion liquid. Compared with the prior art, raw materials for synthesis have wide sources, a preparation cost is low, graphene covalent bond functionalization is realized under strong pi-pi sorption action between the perylene nuclear aromatic ring plane and graphene lamella and preparation processes are simple.

Description

technical field [0001] The invention relates to a perylene methoxy polyethylene glycol, a preparation method thereof and a preparation method of a perylene polyethylene glycol-based graphene dispersion. Background technique [0002] Since the research team of Novoselov and Geim at the University of Manchester in the United Kingdom prepared a single layer of "graphene" for the first time in 2004, the research on the preparation, functionalization, and development of functional devices of graphene has become a major field in many disciplines such as chemistry, physics, and materials. A long-sought-after research topic. [0003] Graphene is a single-atom-thick two-dimensional carbon material composed of periodically densely packed carbon atoms in a hexagonal honeycomb structure. The particularity of the structure endows graphene with unique and rich physical and mechanical properties. For example, graphene is the thinnest and hardest nanomaterial known, with a light transmitt...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G65/331C01B32/194C08L71/02C08K3/04
CPCC08G65/331C08G2650/38C08G2650/50C08K3/04C08L71/02
Inventor 魏伟宋德朋姚伟潘祥华
Owner CHANGZHOU IND TECH RES INST OF ZHEJIANG UNIV
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