Crosslinkable poly-(3,4-ethylenedioxythiophene) aqueous dispersoid and preparation method thereof

A technology of ethylenedioxythiophene and dispersion is applied in the field of cross-linkable poly(3,4-ethylenedioxythiophene) aqueous dispersion and its preparation, which can solve the problems of non-conductivity, application limitation and the like

Active Publication Date: 2012-05-09
溧阳常大技术转移中心有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

People find that its insoluble and infusible properties limit its application. The classic treatment method is to add a water-soluble polymer such as polystyrene sodium sulfonate (PSS) as a template and a dopant, so that this problem can be solved. Solved, but the rigid structure of PSS makes it possible to have a

Method used

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  • Crosslinkable poly-(3,4-ethylenedioxythiophene) aqueous dispersoid and preparation method thereof
  • Crosslinkable poly-(3,4-ethylenedioxythiophene) aqueous dispersoid and preparation method thereof
  • Crosslinkable poly-(3,4-ethylenedioxythiophene) aqueous dispersoid and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] Example 1 Preparation of poly(3,4-ethylenedioxythiophene) (ie PEDOT) aqueous dispersion Ⅰ

[0064] The template and dopant in PEDOT aqueous dispersion Ⅰ are functionalized sodium polystyrene sulfonate and end-capped non-ionic waterborne polyurethane copolymer, wherein the functionalized sodium polystyrene sulfonate is hydroxyethyl acrylate and styrene The molar ratio of sodium sulfonate is 1:4 copolymer, the ratio of the amount of initiator to the total molar amount of the two monomers is 0.001:1; the capped nonionic waterborne polyurethane R (NCO / OH) = 1.1, and the PEG content is 90% , the mass ratio of functionalized sodium polystyrene sulfonate to capped non-ionic waterborne polyurethane copolymer is 1:1; the mass ratio of template and dopant to EDOT is 0.1:1; during the preparation of aqueous dispersion, oxidant, catalyst The molar ratios to EDOT are 1.5:1 and 0.005:1, respectively.

[0065] Concrete preparation method and steps are as follows:

[0066] 1. SSS (8...

Embodiment 2

[0075] Example 2 (Preparation of PEDOT aqueous dispersion II)

[0076] The template and dopant in PEDOT aqueous dispersion II are hydroxypropyl acrylate functionalized sodium polystyrene sulfonate and end-capped non-ionic water-based polyurethane copolymer, in which the functionalized polystyrene sulfonate contains hydroxypropyl acrylate A copolymer with a molar ratio of ester to sodium styrene sulfonate of 1:1, in which the ratio of the amount of initiator to the total molar number of the two monomers is 0.005:1; R(NCO / OH)= 1.6, PEG content 60%; the mass ratio of functionalized sodium polystyrene sulfonate to capped non-ionic water-based polyurethane copolymer is 10:1; the mass ratio of template and dopant to EDOT is 3:1; water dispersion During the preparation process, the molar ratios of oxidant, catalyst and EDOT monomer were 4:1 and 0.001:1, respectively.

[0077] Concrete preparation method and steps are as follows:

[0078] 1. SSS (8.2685g, 0.040mol), hydroxypropyl ...

Embodiment 3

[0088] Example 3 Preparation of poly(3,4-ethylenedioxythiophene) (ie PEDOT) aqueous dispersion Ⅲ

[0089]The template and dopant in PEDOT aqueous dispersion III are functionalized sodium polystyrene sulfonate and end-capped non-ionic waterborne polyurethane copolymer, wherein the functionalized sodium polystyrene sulfonate is hydroxyethyl acrylate and styrene The molar ratio of sodium sulfonate is 1:4 copolymer, the ratio of the amount of initiator to the total molar amount of the two monomers is 0.002:1; the capped nonionic waterborne polyurethane R (NCO / OH) = 1.2, and the PEG content is 10% , the mass ratio of functionalized sodium polystyrene sulfonate to capped non-ionic waterborne polyurethane copolymer is 5:1; the mass ratio of template and dopant to EDOT is 3:1; during the preparation of aqueous dispersion, oxidant, catalyst The molar ratios to EDOT are 1.5:1 and 0.002:1, respectively.

[0090] Concrete preparation method and steps are as follows:

[0091] 1. SSS (8...

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Abstract

The invention provides a crosslinkable poly-(3,4-ethylenedioxythiophene) aqueous dispersoid and a preparation method thereof, relating to the fields of organic semiconductor material preparation technology and application thereof. The crosslinkable (3,4-ethylenedioxythiophene) aqueous dispersoid is prepared by carrying out reaction on monomer, oxidant, a catalyst, a template and adulterant in de-ionized water, wherein the template and the adulterant functionalize sodium polystyrene sulfonate and blocking aqueous polyurethane; the aqueous dispersoid is dark blue in color, and the prepared aqueous dispersoid is subjected to post treatment in a centrifuging manner; and the film formed from the dispersoid can be deblocked and crosslinked at high temperature, so that the water-absorbing capacity of the film is greatly reduced and the film-forming effect is improved. Ultraviolet spectrophotometer tests show that the formed film has no obvious absorption in the visible wavelength range, thereby ensuring that the formed film is suitable for being used as a transparent electrode.

Description

technical field [0001] The invention relates to the preparation technology and application field of organic semiconductor materials, and relates to a cross-linkable poly(3,4-ethylenedioxy Thiophene) aqueous dispersion and preparation method thereof. Background technique [0002] Poly(3,4-ethylenedioxythiophene) (PEDOT) has attracted extensive attention and research by researchers due to its good photoelectric performance, environmental stability and environmental friendliness. People find that its insoluble and infusible properties limit its application. The classic treatment method is to add a water-soluble polymer such as polystyrene sodium sulfonate (PSS) as a template and a dopant, so that this problem can be solved. Solved, but the rigid structure of PSS makes it possible to have a good film-forming effect only when the ratio of 3,4-ethylenedioxythiophene (EDOT) is greater than a certain value, and PSS does not have conductivity, so hope is low It becomes a problem to...

Claims

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Application Information

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IPC IPC(8): C08L65/00C08L87/00C08G61/12C08G81/02C08F212/14C08F220/28C08F220/32C08G18/66C08G18/48C08G18/42
Inventor 李坚刘书英
Owner 溧阳常大技术转移中心有限公司
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