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Preparation method of conjugated microporous polymer thin film and application thereof

A polymer film and conjugated microporous technology, which is used in the preparation of conjugated microporous polymer films, can solve the problems of less research on CMPs films, and achieve the effects of high specific surface area, simple equipment requirements and high stability.

Active Publication Date: 2017-06-27
SOUTH CHINA NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are few studies on the direct preparation of CMPs films by electrochemical methods.

Method used

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  • Preparation method of conjugated microporous polymer thin film and application thereof
  • Preparation method of conjugated microporous polymer thin film and application thereof
  • Preparation method of conjugated microporous polymer thin film and application thereof

Examples

Experimental program
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preparation example Construction

[0041] A method for preparing a conjugated microporous polymer film is prepared from the above-mentioned polymer precursor TPCz or TPECz.

[0042] Preferably, the preparation method is an electrochemical polymerization method.

[0043] Preferably, the electrochemical polymerization method is cyclic voltammetry.

[0044] Preferably, the cyclic voltammetry is performed in a three-electrode system, and the three electrodes include a working electrode, a counter electrode and a reference electrode.

[0045] Preferably, the working electrode is a transparent electrode; the counter electrode is a noble metal, titanium or graphite electrode; the reference electrode is a silver-silver ion electrode, a silver-silver chloride electrode or a saturated calomel electrode; further preferably, the The working electrode is ITO; the counter electrode is titanium; the reference electrode is silver-silver ion electrode.

[0046] The electrolyte in the system includes the above-mentioned polyme...

example 1

[0051] Example 1 (preparation and application of conjugated microporous polymer film TPCz-CMPs):

[0052] Electrochemical polymerization of TPCz was performed on a CHI 660D electrochemical workstation (Shanghai Chenhua Instrument Co., Ltd.) by cyclic voltammetry.

[0053] A three-electrode system is used, in which ITO glass (1.5cm×1.5cm, working area is 1cm 2 ) is the working electrode, which is cleaned by ultrasonic cleaning with distilled water, ITO cleaning solution, acetone, and isopropanol in sequence, and each solvent is ultrasonically washed 3 times, each time for 20 minutes; titanium sheet (1.5cm×3cm) is used as the counter electrode, after being polished by sandpaper, Then wash it with acetone, absolute ethanol, and distilled water in turn, and dry it for later use; Ag / Ag + The electrode (Shanghai Chenhua Scientific Instrument Co., Ltd.) was used as the reference electrode.

[0054] The composition of the electrolyte: the concentration of the polymeric precursor TPC...

example 2

[0059] Example 2 (preparation and application of conjugated microporous polymer film TPECz-CMPs):

[0060] Electrochemical polymerization of TPECz was performed on a CHI 660D electrochemical workstation (Shanghai Chenhua Instrument Co., Ltd.) by cyclic voltammetry.

[0061] The synthetic route of the polymeric precursor TPECz used is as follows:

[0062]

[0063] React carbazole and difluorobenzophenone in a DMF solution at 60°C for 12-24h to obtain compound 1 through coupling reaction; use p-bromotoluene and triethyl phosphite to react at 140°C to obtain intermediate product 2 ; Dissolve intermediate 2 in THF, add t-BuOK, then add compound 1, Wittig-Horner reaction occurs at 28°C, react for 12h, and obtain compound 3; use compound 3, borate, KOAC and Pd (dpdf) Cl 2 , then add dioxane to dissolve it, raise the temperature to 75°C, and react for 12 hours to obtain compound 4; the intermediate product is synthesized by Murry reaction, dibromobenzophenone and Zn are dissolve...

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Abstract

The invention discloses a preparation method of a conjugated microporous polymer thin film and application thereof. The polymerized precursor of the conjugated microporous polymer is electroactive group-containing organic molecules; the general formula of the electroactive group-containing organic molecules is ABm, wherein A is a core unit, and B is electroactive units, the number m of B being decided by the structure of A; A is a unit of a biphenyl-like structure such as triphenylethylene and tetraphenyl ethylene; and B is a group such as carbazole, pyrrole, furan, thiophene, diphenylamine or triphenylamine. The invention also discloses the preparation method of the above conjugated microporous polymer thin film and the application of the conjugated microporous polymer thin film to a supercapacitor. According to the preparation method of the invention, an electrochemical method is utilized to synthesize the conjugated microporous polymer thin film; and the conjugated microporous polymer thin film has high specific surface area and high stability, and has broad prospects in fields for improving the capacitive performance and cycle stability of supercapacitors. The method of the present invention is environmentally friendly, just has simple requirements for equipment and is suitable for large-scale industrial production.

Description

technical field [0001] The invention relates to a preparation method and application of a conjugated microporous polymer film, belonging to the technical field of polymer materials. Background technique [0002] Conjugated microporous polymers (conjugated microporous polymers, CMPs) in the microstructure due to the rigidity of the conjugated units and the way of conjugating bonds, after the extraction of solvent molecules, the skeleton structure can effectively support the microporous channels, so The material can provide stable intrinsic porosity, showing very unique, excellent and designable performance. In the past 10 years, CMPs have broad application prospects in adsorption, separation, heterogeneous catalysis, gas storage, chemical sensing, and electrical energy storage. [0003] The CMPs film is prepared by electrochemical polymerization. Compared with the composite film, this film completely composed of CMPs framework is supported by fully conjugated polymers, so it...

Claims

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Application Information

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IPC IPC(8): H01G11/24H01G11/48H01G11/86
CPCY02E60/13H01G11/24H01G11/48H01G11/86
Inventor 刘聪石光郝洪敏罗海媛
Owner SOUTH CHINA NORMAL UNIVERSITY
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