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Method for preparing conductive polymers ordered nano film

A conductive polymer and nano-film technology, applied in the field of polymer materials, can solve the problems of reducing the conductivity of conductive polymers, affecting the carrier migration rate, unable to obtain a layered structure, etc., achieving rapid adsorption and desorption, easy Operation, effect of device performance improvement

Inactive Publication Date: 2009-05-06
UNIV OF ELECTRONIC SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

First of all, the ESA method cannot obtain a completely ordered layered structure, and the conductivity of the soluble PEDOT:PSS polymer is obviously not as high as that of PEDOT, which affects the mobility of carriers; in addition, although monomer modification can obtain The ordered structure of PEDOT-based materials, but the addition of long alkyl chains significantly reduces the conductivity of conductive polymers, so there is an urgent need for a method to obtain structurally strictly ordered conductive polymer nanofilms, while the polymer It is prepared in situ, the molecular chain structure does not change, and does not affect the conductivity of the conductive polymer itself

Method used

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  • Method for preparing conductive polymers ordered nano film
  • Method for preparing conductive polymers ordered nano film

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Experimental program
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Effect test

Embodiment 1

[0049] exist figure 1 The concentration of oxidant ions in the subphase must reach a certain concentration, and when it is converted into oxidant active sites in the solid film, there will be sufficient oxidant concentration in the film. The surface of the substrate is treated with hydrophilicity. Then the surfactant octadecanoic acid chloroform solution is added dropwise on the surface of the subphase, and after the chloroform volatilizes, the sliding barrier 5 is controlled to compress the monomolecular film at a certain speed, and after reaching the required surface pressure, keep the molding pressure constant for a period of time, and then control The substrate transfers the composite film to the surface of the substrate at a certain speed.

[0050] exist figure 2 in, by figure 1 The obtained multilayer ordered film is firstly exposed to an airtight atmosphere containing oxidizing gas to obtain a multilayer ordered film containing oxidant active sites.

[0051] exist ...

Embodiment 2

[0062] Such as figure 2 , the surfactant material is octadecanoic acid, and the surface of the substrate is treated with hydrophobicity.

[0063] The preparation process of the ordered nano-film structure is similar to Embodiment 1. Since the surface of the substrate is treated with hydrophobicity, the following ordered nano-film structure is obtained:

[0064] Substrate / single octadecyl chain / {3,4-polyethylenedioxythiophene / double octadecyl chain / 3,4-polyethylenedioxythiophene} n , n is determined by the number of layers of the film.

Embodiment 3

[0066] Such as figure 2 , the surfactant material is eicosanoic acid, and the surface of the substrate is treated with hydrophilicity.

[0067] The preparation process of the ordered nano-film structure is similar to Embodiment 1. Since the surface of the substrate is treated hydrophilically, the following ordered nano-film structure is obtained:

[0068] Substrate / {3,4-polyethylenedioxythiophene / double eicosyl chain / 3,4-polyethylenedioxythiophene} n, n is determined by the number of layers of the film.

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Abstract

The invention discloses a method for preparing a conductive polymer ordered nano membrane which comprises the preparation of a surface active agent ordered membrane and a surface active agent / conductive polymer composite ordered membrane. The method is characterized in that the method of modifying the Langmuir-Blodgett(LB) ordered nano membrane is utilized, active points supplied by the nano membrane are utilized to fix oxidizer, and the method for dispersing adsorption and polymerization of single gas is also utilized to obtain the conductive polymer multi-layer ordered nano membrane. The conductive polymer composite nano membrane obtained by the method has the advantages of ordered laminarization, good conductive performance and adjustable multi-layer distance of membranes. The method can be applied to the preparation of the high-conduction polymer membrane and a gas sensor sensitive membrane.

Description

technical field [0001] The invention relates to the field of polymer materials, in particular to a method for preparing a conductive polymer ordered nano film. Background technique [0002] As a new type of material with broad application prospects (with electrical conductivity and other properties), conductive polymers have gradually become a research hotspot since they were discovered. In the second half of the 1980s, Bayer Company of Germany successfully developed a polythiophene derivative: 3,4-polyethylenedioxythiophene, referred to as PEDOT. PEDOT has the characteristics of high electrical conductivity and stability, good optical transparency and easy synthesis, and has broad application prospects in antistatic coatings, organic display devices, energy storage conversion, and sensors. In terms of sensors and organic display devices, PEDOT films, especially two-dimensional nano-films, have been widely used. Ouyang et al. prepared PEODT / PSS nano-films by spin-coating m...

Claims

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Application Information

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IPC IPC(8): C03C17/28C04B41/63
Inventor 杨亚杰徐建华于军胜蒋亚东
Owner UNIV OF ELECTRONIC SCI & TECH OF CHINA
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