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An Electric Field-Induced Method for Precisely Tuning the Hydrophobicity of Conjugated Polymer Films

A conjugated polymer, electric field induction technology, applied in the field of conjugated polymer film morphology, can solve the problems of cumbersome and complicated operation methods, fixed contact angle angle, and limited application fields

Active Publication Date: 2021-09-17
CHANGCHUN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, these existing methods have many disadvantages, for example, the operation method is cumbersome and complicated, and the contact angle of the material prepared by the traditional method is fixed, which limits its application field to a certain extent.

Method used

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  • An Electric Field-Induced Method for Precisely Tuning the Hydrophobicity of Conjugated Polymer Films
  • An Electric Field-Induced Method for Precisely Tuning the Hydrophobicity of Conjugated Polymer Films
  • An Electric Field-Induced Method for Precisely Tuning the Hydrophobicity of Conjugated Polymer Films

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Embodiment 1: Poly 3-butylthiophene (P 3 BT) was dissolved in o-dichlorobenzene, and prepared as P with a solution concentration of 10.0 mg / ml 3 After the BT solution was spin-coated to form a film, it was placed in the electric field polarization device of the needle electrode, and the polarization treatment was carried out at a temperature of 121 ° C for half an hour at different working electric field strengths. The contact angle of the poly-3-butylthiophene film polarized by the electric field was tested and characterized by a contact angle tester. The test results are the average of 5 measurements.

Embodiment 2

[0029] Embodiment 2: Poly 3-hexylthiophene (P 3 HT) was dissolved in chlorobenzene to prepare a solution with a concentration of 10.0 mg / ml of P 3 After the HT solution is spin-coated to form a film, it is placed in the electric field polarization device of the wire electrode, and the polarization treatment is carried out at a temperature of 130 ° C for half an hour at different working electric field strengths. The contact angle of the poly-3-hexylthiophene film polarized by the electric field was tested and characterized by a contact angle tester. The test results are the average of 5 measurements.

Embodiment 3

[0030] Example 3: Converting a narrow bandgap polymer to 3,9-bis(2-methylene-(3-(1,1-dicyano)indanone)-5,5,11,11 tetra (4-Hexylphenyl)thieno[2,3-d:2',3'-d']-s-indole[1,2-b:5,6-b']dithiophene (ITIC) Dissolved in chloroform, prepared as an ITIC solution with a solution concentration of 10.0mg / ml, after spin-coating to form a film, it was placed in the electric field polarization device of the wire electrode, under different working electric field strengths, and the temperature was 180°C Carry out the polarization treatment for half an hour. The ITIC film polarized by the electric field is tested and characterized by the contact angle with a contact angle tester. The test result is the average value of 5 measurement results.

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Abstract

The invention relates to an electric field induction method for precisely regulating the hydrophobic property of a conjugated polymer film. By adjusting the electric field strength during the electric field induction process, the hydrophobic properties of the single-component conjugated polymer film can be precisely adjusted. The study found that the crystallization behavior of the conjugated polymer was inhibited with the increase of the electric field strength, and the change of the crystallization behavior in the film caused a special film morphology change, thereby affecting the hydrophobic properties of the film. The invention provides a simple and effective preparation method for regulating the hydrophobic property of the film.

Description

technical field [0001] The invention relates to the field of morphology of conjugated polymer films, in particular to an electric field induction method for precisely regulating the hydrophobic properties of conjugated polymer films. Background technique [0002] In the past decades, conjugated polymers have attracted increasing attention due to their unique advantages such as machinability, low fabrication cost, and light weight. So far, conjugated polymers have been widely used in fields such as field-effect transistors, photovoltaic cells, and light-emitting diodes. As people pay more and more attention to the surface properties of solids, wettability is one of the biggest concerns. Regulating the hydrophobicity of materials is used in waterproof and antifouling treatment, for micro-syringe needle tips, and in antifouling and anticorrosion of ocean-going ships. , used in the transportation of oil pipelines, etc. At present, there are many methods for regulating the hydr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08J7/12C08J5/18C08L65/00
CPCC08J5/18C08J7/123C08J2365/00
Inventor 王世伟闫肃王冕
Owner CHANGCHUN UNIV OF TECH
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