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Method for preparing nano porous polypyrrole film using nanobubbles as templates

A nanoporous and nanobubble technology, applied in the field of material preparation, can solve the problems of destroying the properties of nanoporous polymers and cumbersome steps, and achieve the effect of low cost and reduced production cost

Inactive Publication Date: 2009-03-11
EAST CHINA NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The disadvantage of the background technology is that the above-mentioned steps of removing the template are cumbersome. In addition, during the template dissolution process, the solvent may destroy the properties of the nanoporous polymer.

Method used

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  • Method for preparing nano porous polypyrrole film using nanobubbles as templates

Examples

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Effect test

Embodiment 1

[0023] In the first step, the voltage of the working electrode 1 is -1.9V, and the reaction time is 1s. The atomic force microscope is used for in-situ observation, and the size of the generated nano-hydrogen bubbles 2 is observed to be 45nm to 125nm, within the range of 5μm×5μm The number of bubbles is greater than 300; in the second step, it can be seen from the in-situ AFM image that the nano-hydrogen bubbles 2 generated by adding -1.9V voltage for 1s are used as templates, and the size of the pores of the nanoporous polypyrrole film 4 obtained is 45-125 nm, the number of pores is about 300 per 5 μm×5 μm. see figure 1 (a).

Embodiment 2

[0025] In the first step, the voltage of the working electrode 1 is -1.5V, and the reaction time is 10s. The atomic force microscope is used for in-situ observation. It is observed that the size of the generated nano-hydrogen bubbles 2 is 40nm-365nm, within the range of 5μm×5μm The number of bubbles is about 150; in the second step, it can be seen from the in-situ AFM image that using the nano-hydrogen bubbles 2 generated by applying a voltage of -1.5V for 10s as a template, the size of the pores of the nanoporous polypyrrole film 4 obtained is 60 nm to 400 nm, and the number of pores is about 150 per 5 μm×5 μm. see figure 1 (b).

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Abstract

The invention provides a method for preparing a nanometer porous polypyrrole film by using nano-bubble as a template, which belongs to the technical field of material preparation. The method comprises the following steps: polymerizing pyrrole into a polypyrrole film by using nanometer hydrogen bubbles generated by electrochemistry as the template; taking out the polypyrrole film from polymerized solution after the polypyrrole film is shaped; and removing the bubble template after the nanometer hydrogen bubbles automatically escape so as to produce the nanometer porous polypyrrole film. The method simplifies the steps of removing the template by solvent during the prior preparation process by template method, and avoids the effect of the solvent on the property of the polypyrrole. The method is suitable for preparing the nanometer porous polypyrrole film which can be used for preparing electronic devices, drivers, sensors, ultrafiltration films and the like.

Description

technical field [0001] The invention relates to a method for preparing a nanoporous polypyrrole film by using nano bubbles as a template, and belongs to the technical field of material preparation. Background technique [0002] Polypyrrole is a conductive polymer material widely used in the electronics industry. It has become a research hotspot due to its high conductivity, good stability and easy synthesis. Micro- and nano-porous polypyrrole films have been widely used in the preparation of electronic devices, drivers, sensors, ultrafiltration membranes, etc. The template method is one of the methods to prepare polymers with nanostructures. Usually, ZnO nanowires or nanotube arrays are used as templates to control the nanostructures of polymers during polymerization. After polymerization, the plates are dissolved and removed with a suitable solvent, so that A nanoporous polymer is obtained. The disadvantage of the background technology is that the above-mentioned step of ...

Claims

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Application Information

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IPC IPC(8): C08J9/00C08L79/04C08G73/06
Inventor 何品刚惠飞方禹之
Owner EAST CHINA NORMAL UNIV
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