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Polyether poly(3,4-ethylenedioxythiophene) (PEDOT) water dispersion and preparation method thereof

A technology of ethylenedioxythiophene and polyether polyurethane is applied in the field of poly(3,4-ethylenedioxythiophene) (PEDOT) aqueous dispersion and its preparation, and can solve the problems of poor film-forming property, high water absorption and the like, achieve good stability

Inactive Publication Date: 2012-04-04
CHANGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of polymer solves the problems of insolubility, infusibility and processing, but PSS itself has a rigid structure, and its poor film-forming property and high water absorption make the polymer PEDOT / PSS limited in film-forming and electronic device applications.

Method used

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  • Polyether poly(3,4-ethylenedioxythiophene) (PEDOT) water dispersion and preparation method thereof
  • Polyether poly(3,4-ethylenedioxythiophene) (PEDOT) water dispersion and preparation method thereof
  • Polyether poly(3,4-ethylenedioxythiophene) (PEDOT) water dispersion and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Example 1 ( Preparation of poly(3,4-ethylenedioxythiophene) water dispersion Ⅰ)

[0042] Poly(3,4-ethylenedioxythiophene) (ie PEDOT) water dispersion Ⅰ template and dopant are SSS and polyether (Mn=5000) type polyurethane copolymer, and end-capping agent in the preparation process of polyether type polyurethane The molar ratio of HPA dosage to diisocyanate is 1:1. The molar ratio of SSS to polyether (Mn=5000) polyurethane is 10:1; the molar ratio of initiator to SSS during the preparation process is 0.001:1. The mass ratio of template and dopant to EDOT is 0.01:1. During the reaction of the two, the molar ratios of oxidant, catalyst and EDOT are 1.5:1 and 0.002:1, respectively.

[0043] The specific preparation method and steps are as follows:

[0044] 1. MPEG (Mn=5000, 25.0000g, 0.005mol), methyl ethyl ketone (5.4600g) was put into a 100ml four-necked flask equipped with a spherical condenser, and heated and stirred. After the MPEG was completely dissolved, IPDI (0.1380g,...

Embodiment 2

[0049] Example 2 (Preparation of PEDOT water dispersion II)

[0050] The template and dopant in PEDOT water dispersion II are SSS and polyether (Mn=1000) polyurethane copolymer. The molar ratio of HPA and diisocyanate used in the preparation of polyether polyurethane is 2:1. The molar ratio of SSS to polyether (Mn=1000) polyurethane is 39:1; the molar ratio of initiator to SSS is 0.005:1. The mass ratio of template and dopant to EDOT is 3:1. During the reaction of the two, the molar ratios of oxidant, catalyst and EDOT are 4:1 and 0.005:1 respectively.

[0051] The specific preparation method and steps are as follows:

[0052] 1. MPEG (Mn=1000, 5.000g, 0.005mol), butanone (5.4600g) were put into a 100ml four-necked flask equipped with a spherical condenser, and heated and stirred. After the MPEG was completely dissolved, IPDI (0.1380g, 0.0053mol) and a small amount of glacial acetic acid (0.6400g) were added. React at 80°C for 5 hours. When the temperature drops to 60°C, add HPA ...

Embodiment 3

[0058] Example 3 (Preparation of PEDOT water dispersion Ⅲ)

[0059] The template and dopant in PEDOT water dispersion III are sodium styrene sulfonate and polyether (Mn=200) polyurethane copolymer. The amount of blocking agent HEA and the molar ratio of diisocyanate in the preparation of polyether polyurethane is 1.5:1 . The molar ratio of SSS to polyether (Mn=200) polyurethane is 87:1; the molar ratio of initiator to SSS is 0.002:1. The mass ratio of template and dopant to EDOT is 3:1. During the reaction of the two, the molar ratios of oxidant, catalyst and EDOT are 0.5:1 and 0.005:1, respectively.

[0060] The specific preparation method and steps are as follows:

[0061] 1. MPEG (Mn=200, 0.5000g, 0.005mol), methyl ethyl ketone (5.4600g) was added to a 100ml four-necked flask equipped with a spherical condenser, and heated and stirred. After the MPEG was completely dissolved, IPDI (0.1380g, 0.0053mol) and a small amount of glacial acetic acid (0.6400g) were added. React at 80...

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PUM

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Abstract

The invention relates to the field of preparation technologies and applications of organic semiconductor materials, and concretely relates to a polyether PEDOT water dispersion and a preparation method thereof. The preparation of the crosslinkable EDOT water dispersion is completed by carrying out a reaction on a monomer, an oxidant, a catalyst, a template, and a doping agent in deionized water, wherein the template and the doping agent are a copolymer of functionalized polystyrene sulfonate and terminated aqueous polyurethane. The water dispersion is dark blue in color, and is post-processed in a centrifuging mode after the preparation. A film prepared from the dispersion can release the crosslinking at a high temperature, so the water absorption capability of the film is substantially reduced, and the film forming effect is improved. The formed film is tested by an ultraviolet spectrophotometer, and results show that there is no obvious absorption in the visible light wavelength range, so the film is suitable for being a transparent electrode.

Description

technical field [0001] The invention relates to the preparation technology and application field of organic semiconductor materials, and relates to poly(3,4-ethylenedioxythiophene) (PEDOT) water with sodium polystyrene sulfonate and polyether polyurethane copolymer as template and dopant Dispersions and methods for their preparation. Background technique [0002] The discovery of conductive polyacetylene made people realize that polymers can not only be used as insulators, but also have great room for development in the field of semiconductors and conductors due to their excellent electrical properties. Therefore, scientists from various countries pay more attention to conductive polymers. The study of materials has also brought the development of conductive polymers into a new era. Conductive polymers are characterized by light weight and high flexibility. Electronic devices using conductive polymers as electrical materials, such as electromagnetic shielding materials, nan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L65/00C08L51/08C08G61/12C08F290/06C08F112/14C08G18/67C08G18/48
Inventor 李坚刘书英李玉玲
Owner CHANGZHOU UNIV
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