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3,4-ethylenedioxythiophene polymer capable of being super-assembled with carbon-based material and preparation method thereof

A technology of ethylenedioxythiophene and carbon-based materials, which is applied in the field of 3,4-ethylenedioxythiophene polymer and its preparation, can solve problems such as easy agglomeration and difficult dispersion, and achieve easy operation, dispersion and good stability Effect

Pending Publication Date: 2019-09-27
FUDAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In order to overcome the defects that existing carbon nanotubes are easy to agglomerate and difficult to disperse, the present invention provides a 3,4-ethylenedioxythiophene polymer that can be superassembled with carbon-based materials and its preparation method

Method used

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  • 3,4-ethylenedioxythiophene polymer capable of being super-assembled with carbon-based material and preparation method thereof
  • 3,4-ethylenedioxythiophene polymer capable of being super-assembled with carbon-based material and preparation method thereof
  • 3,4-ethylenedioxythiophene polymer capable of being super-assembled with carbon-based material and preparation method thereof

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Embodiment 1

[0029] The preparation process of 3,4-ethylenedioxythiophenyl polymer 5:

[0030] .

[0031] The synthesis of intermediates 2-4 was carried out according to the steps reported in Chem. Eur. J. 2011, 17, 1473-1484. The obtained 2,5-dibromo-3,4-ethylenedioxythiophene 2 was a white solid. 1 H NMR (500 MHz, Chloroform-d) δ4.26 – 4.24 (m, 4H); bistrimethylsilyl 3,4-ethylenedioxythiophene intermediate 3, white solid. 1 H NMR (500MHz, Chloroform- d ) δ 4.24 (m, 4 H), 0.25 (s, 18H). Dialkynyl 3,4-ethylenedioxythiophene intermediate 4, white solid. 1 H NMR (500 MHz, Chloroform- d ) δ 4.24 (s, 4H), 3.29 (s, 2H).

[0032] Polymer 5: Add 2,5-dibromo3,4-ethylenedioxythiophene 2 (3.0 g, 10 mmol), diacetylenyl 3,4-ethylenedioxythiophene 2 (3.0 g, 10 mmol) into a dry 250 mL three-neck flask under nitrogen protection Oxythiophene intermediate 4 (1.9 g, 10 mmol), add CuI (0.19 g, 1 mmol), tetrakistriphenylphosphine palladium (0.24 g, 0.2 mmol) triphenylphosphine (0.13 g, 0.5 mmol), an...

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Abstract

The invention belongs to the technical field of organic supermolecules and specifically relates to a 3,4-ethylenedioxythiophene polymer which can be super-assembled with a carbon-based material and a preparation method thereof. The polymer of the invention is a high molecular polymer with 3,4-ethylenedioxythiophene-2-acetylene as a main chain and an alkoxy group as a side chain. The preparation method comprises the following steps: 3,4-ethylenedioxythiophene, which is used as a starting material, is subjected to a bromination reaction to obtain 2,5-dibromo-3,4-vinyldioxythiophene; then, 2,5-dibromo-3,4-vinyldioxythiophene reacts with trimethylsilylacetylene to obtain a bistrimethylsilyl3,4-vinyldioxythiophene intermediate; after removal of theTMS protecting group, a Sonogashira reaction between the above reaction product and 2,5-dibromo-3,4-vinyldioxythiophene is carried out to obtain the 3,4-ethylenedioxythiophene polymer. The polymer and carbon nanotubes can form a super-assembly system with main chain Pi-Pi adsorption and side chain winding. The 3,4-vinyldioxythiophene polymer / carbon nanotube composite formed by the super-assembly system has good stability and has a broad application prospect in composite materials.

Description

technical field [0001] The invention belongs to the technical field of organic supramolecules, and in particular relates to a 3,4-ethylenedioxythiophene polymer capable of superassembling with carbon-based materials and a preparation method. [0002] technical background [0003] Self-assembly (self-assembly) refers to a technology in which basic structural units (molecules, nanomaterials, micron or larger scale substances) spontaneously form ordered structures. In the process of self-assembly, basic structural units spontaneously organize or aggregate into a stable structure with a certain regular geometric appearance under the interaction based on non-covalent bonds. [0004] Carbon nanotube is a nanomaterial with hexagonal structure as the main linking group, which has excellent mechanical, electrical and chemical properties. There are single-walled and multi-walled carbon nanotubes, and the size range of carbon nanotubes is relatively large. The common diameter is 2-100 ...

Claims

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Application Information

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IPC IPC(8): C08G61/12
CPCC08G61/126C08G2261/11C08G2261/3243C08K3/041C08G61/12C08L65/00C08G2261/1412C08G2261/1424C08G2261/3223C08G2261/3422C08G2261/415C08J2365/00C08J5/005C08J3/14
Inventor 孔彪李继超曾洁
Owner FUDAN UNIV
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