A hydrogen bond crosslinked intrinsically stretchable electrochromic polymer and its preparation method

An electrochromic, polymer technology, applied in the field of electrochromic materials, which can solve the problems of weak force and stability

Active Publication Date: 2020-09-22
江苏科奥门窗科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The formation of hydrogen bonds is mainly due to electrostatic force, and its bond energy is slightly stronger than van der Waals force, but its force and stability are significantly weaker than covalent bonds and ionic bonds

Method used

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  • A hydrogen bond crosslinked intrinsically stretchable electrochromic polymer and its preparation method
  • A hydrogen bond crosslinked intrinsically stretchable electrochromic polymer and its preparation method
  • A hydrogen bond crosslinked intrinsically stretchable electrochromic polymer and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] A hydrogen-bonded cross-linked intrinsically stretchable electrochromic polymer based on isoindigos, prepared by the following steps:

[0048] (1) Synthesis of stretchable group PDCAs

[0049]

[0050] (1a) Using 2,6-pyridinedicarboxylic acid (10.03g, 0.06mol) as raw material, react with oxalyl chloride (22.85g, 0.18mol) to generate 2,6-pyridinedicarboxylic acid chloride;

[0051] (1b) 2,6-Pyridinedicarboxylic acid chloride (2.98g, 0.18mol) and 2-ethylamine EDOT (6.00g, 0.32mol) in a mixed solution of triethylamine (6mL) and CH2Cl2 (36mL) for one-step synthesis of PDCA short chain,

[0052] (1c) PDCA short chain (1.3g, 3.37mmol) reacts with LDA (3.37mL, 6.74mmol), tributyltin chloride (2.19g, 6.74mmol) to obtain tin-butylated PDCAs, after separation and purification, as Use later.

[0053] (2) Synthesis of donor group BisEDOT

[0054]

[0055] (2a) With EDOT (7.50g, 50mmol) as raw material, THF (50mL) as solvent, react with n-butyllithium (53mL, 85.00mmol) at ...

Embodiment 2

[0068] A hydrogen-bonded cross-linked intrinsically stretchable electrochromic polymer based on benzotriazoles is prepared through the following steps:

[0069] (1) Synthesis of stretchable group PDCAs

[0070]

[0071] (1a) Using 2,6-pyridinedicarboxylic acid (10.03g, 0.06mol) as raw material, react with oxalyl chloride (22.85g, 0.18mol) to generate 2,6-pyridinedicarboxylic acid chloride;

[0072] (1b) 2,6-Pyridinedicarboxylic acid chloride (2.98g, 0.18mol) and 2-ethylamine EDOT (6.00g, 0.32mol) in a mixed solution of triethylamine (6mL) and CH2Cl2 (36mL) for one-step synthesis of PDCA short chain,

[0073] (1c) PDCA short chain (1.3g, 3.37mmol) reacts with LDA (3.37mL, 6.74mmol), tributyltin chloride (2.19g, 6.74mmol) to obtain tin-butylated PDCAs, after separation and purification, as Use later.

[0074] (2) Synthesis of donor group BisEDOT

[0075]

[0076] (2a) With EDOT (7.50g, 50mmol) as raw material, THF (50mL) as solvent, react with n-butyllithium (53mL, 85.00...

Embodiment 3

[0090] A hydrogen-bonded cross-linked intrinsically stretchable electrochromic polymer based on PEDOT oligomers, prepared by the following steps:

[0091] (1) Synthesis of stretchable group PDCAs

[0092]

[0093] (1a) Using 2,6-pyridinedicarboxylic acid (10.03g, 0.06mol) as raw material, react with oxalyl chloride (22.85g, 0.18mol) to generate 2,6-pyridinedicarboxylic acid chloride;

[0094] (1b) 2,6-Pyridinedicarboxylic acid chloride (2.98g, 0.18mol) and 2-ethylamine EDOT (6.00g, 0.32mol) in a mixed solution of triethylamine (6mL) and CH2Cl2 (36mL) for one-step synthesis of PDCA short chain,

[0095] (1c) PDCA short chain (1.3g, 3.37mmol) reacts with LDA (3.37mL, 6.74mmol), tributyltin chloride (2.19g, 6.74mmol) to obtain tin-butylated PDCAs, after separation and purification, as Use later.

[0096] (2) Synthesis of donor group BisEDOT

[0097]

[0098] (2a) With EDOT (7.50g, 50mmol) as raw material, THF (50mL) as solvent, react with n-butyllithium (53mL, 85.00mmol...

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Abstract

The invention discloses a hydrogen bond cross-linked intrinsic stretchable electrochromic polymer. The polymer comprises a color-changing functional group and a hydrogen bond cross-linked stretchablegroup, wherein the color-changing functional group is obtained by taking 3,4-ethylenedioxythiophene as a donor unit and a five-membered heterocyclic compound or an aromatic compound without electronicperformance as a receptor group through one-step Stille coupling reaction or Suzuki coupling reaction; the hydrogen bond cross-linked stretchable group is composed of a pyridine-bisformamide derivative or a bipyridine-bisformamide derivative. A series of novel hydrogen bond cross-linked intrinsic stretchable electrochromic novel material is synthesized by the design, and certain theoretical guidance and material and technology supports are provided for synthesis of the stretchable electrochromic material and researches of devices.

Description

technical field [0001] The invention relates to the technical field of electrochromic materials, in particular to a hydrogen-bonded cross-linked material based on pyridine-2,6-dicarboxamides (PDCAs) or bipyridine-dicarboxamides (DPDCAs) groups. Stretchable electrochromic polymer material and preparation method thereof Background technique [0002] Flexible smart devices are the mainstream development direction of electronic products today, and the market development prospects are huge. Its market size is estimated to far exceed 20 billion US dollars by 2020. As one of the important functional materials of display devices and some wearable electronic devices, electrochromic materials refer to the double injection, extraction or redox reaction of electrons and ions under the action of a weak electric field, so that its color can be reversible. A class of energy-saving materials that change continuously. This kind of material shows broad application prospects in many fields, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G61/12
CPCC08G61/126C08G2261/124C08G2261/1412C08G2261/414C08G2261/54
Inventor 卢宝阳顾华徐景坤刘西梅陈帅渐南南屈凯李美静薛婷康欢
Owner 江苏科奥门窗科技有限公司
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