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Orientated rod-shaped-structure polyaniline film and preparation method therefor

A technology of polyaniline film and rod-like structure, which is applied in the field of polyaniline film with oriented rod-like structure and its preparation, can solve the problems that the electrochromic performance needs to be further improved, the preparation process of polyaniline electrochromic film is complicated, etc., and achieve cycle stability Good performance, rich variety of discoloration, high electrochromic contrast

Active Publication Date: 2020-03-06
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to solve the problems that the preparation process of polyaniline electrochromic film is complicated and the electrochromic performance needs to be further improved in the prior art, and to provide a polyaniline film with an oriented rod-like structure and its preparation method

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  • Orientated rod-shaped-structure polyaniline film and preparation method therefor
  • Orientated rod-shaped-structure polyaniline film and preparation method therefor
  • Orientated rod-shaped-structure polyaniline film and preparation method therefor

Examples

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Embodiment 1

[0042] A polyaniline film with an oriented rod-like structure, the preparation method of which is as follows: first, aniline and p-toluenesulfonic acid with a molar ratio of 1:10 are configured into an electrolyte solution, and the concentrations of aniline and p-toluenesulfonic acid in the electrolyte solution are respectively 0.05mol / L and 0.5mol / L, and then under the temperature condition of 20 ℃, the polyaniline film with oriented rod structure was deposited by electrochemical polymerization; a three-electrode system was adopted, and the three electrodes were working electrode, counter electrode and reference electrode; The working electrode is indium tin oxide conductive glass deposited with oriented rod-shaped polyaniline film, the counter electrode is platinum electrode, and the reference electrode is saturated calomel electrode; the constant potential mode is adopted, the voltage is 0.7V, and the voltage application time is 600s.

[0043] A polyaniline film with orient...

Embodiment 2

[0059] A polyaniline film with an oriented rod-like structure, the preparation method of which is as follows: first, aniline and p-toluenesulfonic acid with a molar ratio of 1:5 are configured into an electrolyte solution, and the concentrations of aniline and p-toluenesulfonic acid in the electrolyte solution are 0.16mol respectively / L and 0.8mol / L, and then under the temperature condition of 23 ℃, the polyaniline film with oriented rod structure was deposited by electrochemical polymerization; a three-electrode system was adopted, and the three electrodes were working electrode, counter electrode and reference electrode; The working electrode is a silicon wafer with polyaniline film deposited with an orientation rod structure, the counter electrode is a platinum electrode, and the reference electrode is a saturated calomel electrode; the constant current mode is adopted, the current is 3mA, and the current application time is 300s.

[0060] A finally obtained polyaniline fil...

Embodiment 3

[0062] A polyaniline film with an oriented rod-like structure, the preparation method of which is as follows: first, aniline and naphthalenesulfonic acid with a molar ratio of 1:5.4 are configured into an electrolyte solution, and the concentrations of aniline and naphthalenesulfonic acid in the electrolyte solution are respectively 0.28mol / L and 1.5mol / L, and then deposited by electrochemical polymerization at a temperature of 25°C to obtain a polyaniline film with an oriented rod-like structure; a three-electrode system was used, and the three electrodes were the working electrode, the counter electrode and the reference electrode; the working electrode The stainless steel electrode for depositing oriented rod-shaped polyaniline film, the counter electrode is a platinum electrode, and the reference electrode is a saturated calomel electrode; the constant potential mode is used, the voltage is 0.8V, the current is 5mA, and the voltage application time is 380s.

[0063] A polya...

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Abstract

The invention relates to an orientated rod-shaped-structure polyaniline film and a preparation method therefor. The preparation method comprises the steps of preparing an electrolyte from aniline andprotonic acid, and then, carrying out deposition by employing an electrochemical polymerization method, thereby preparing the orientated rod-shaped-structure polyaniline film, wherein the protonic acid is p-toluenesulfonic acid, naphthalene sulfonic acid, salicylic acid or dodecylbenzene sulfonic acid. The prepared orientated rod-shaped-structure polyaniline film is mainly prepared from porous cross-linked polyaniline and rod-shaped polyanilines distributed on the surface of the porous cross-linked polyaniline, and the porous cross-linked polyaniline and the rod-shaped polyanilines are separately formed through cross-linking and piling stretched polyaniline molecular chains; nitrogen atoms, connected with quinone rings, in the stretched polyaniline molecular chains are bonded to cations ofthe protonic acid to form -NH<+=>, and anions of the protonic acid are attached to the -NH<+=> in the form of an ionic bond; and all the rod-shaped polyanilines are orientated along the same direction and are of non-equidistant arrangement along a direction of orientation, and holes are distributed in the rod-shaped polyanilines. The preparation method disclosed by the invention is simple, and the prepared orientated rod-shaped-structure polyaniline film is excellent in electrochromic performance.

Description

technical field [0001] The invention belongs to the technical field of functional polymer materials, and relates to a polyaniline film with an oriented rod structure and a preparation method thereof. Background technique [0002] Electrochromic materials can undergo reversible optical changes under the action of an applied electric field, and their importance has become increasingly prominent in the fields of smart windows, electronic displays, military camouflage, and smart sensing. The most common electrochromic materials are inorganic color-changing materials such as tungsten trioxide and Prussian blue, but they have problems such as long color-changing response time, high oxidation potential, poor cycle stability, and low brittle toughness, while organic conductive polymer electrochromic Materials just make up for the above defects. Among them, polyaniline has the advantages of simple preparation, stable chemical properties, unique doping mechanism and reversible electr...

Claims

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Application Information

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IPC IPC(8): C08J5/18C08G73/02C08L79/02
CPCC08G73/0266C08J5/18C08J2379/02
Inventor 范苏娜黄翔宇张耀鹏邵惠丽胡学超
Owner DONGHUA UNIV
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