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Method for regulating light softening degree of PAAB/PMMA mixed film by adjusting of content of aminoazobenzene

An aminoazobenzene and mixed membrane technology, applied in the field of controlling the mechanical properties of polymer films, can solve the problems of complex preparation process, expensive equipment, low efficiency, etc., and achieve the effects of short processing time, small material loss, and simple and fast operation.

Inactive Publication Date: 2017-12-22
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the above-mentioned prior art, the present invention proposes a method for regulating the photosoftening degree of PAAB / PMMA mixed film by adjusting the content of aminoazobenzene, and the mixed film with different photosoftening degrees can be prepared through simple parameter adjustment, which has the advantages of simple , fast, and good repeatability, avoiding the disadvantages of complicated preparation process, expensive equipment, and low efficiency, and has potential application prospects in the construction of microcircuits and other fields

Method used

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  • Method for regulating light softening degree of PAAB/PMMA mixed film by adjusting of content of aminoazobenzene
  • Method for regulating light softening degree of PAAB/PMMA mixed film by adjusting of content of aminoazobenzene

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Embodiment 1

[0018] Embodiment 1, a kind of method that regulates the photosoftening degree of PAAB / PMMA mixed film by regulating aminoazobenzene content, steps are as follows:

[0019] Step 1, the preparation method of PAAB / PMMA mixed film:

[0020] 1-1) Treatment of glass slides: First, ultrasonically clean the glass slides successively with distilled water and absolute ethanol, and then place them in a mixed solution of hydrogen peroxide / ammonia water / deionized water, wherein, hydrogen peroxide: ammonia water: deionized water The volume ratio is 1:1:5, heated at 70°C for 10 minutes, rinsed with deionized water, and dried for later use;

[0021] 1-2) Mix polyaminoazobenzene polymethyl methacrylate evenly, wherein the mass fraction of polyaminoazobenzene is ω=0.2, dissolve the mixture in tetrahydrofuran, wherein the mass fraction of the mixture in tetrahydrofuran is 10%, fully stirred for 24 hours to obtain a mixed solution;

[0022] 1-3) Using the glass slide treated in step 1-1) as a ...

Embodiment 2

[0027] Embodiment 2: a kind of method that regulates the photosoftening degree of PAAB / PMMA mixed film by regulating aminoazobenzene content, embodiment 2 is basically the same as embodiment 1, difference is only in 1-2) the polyaminoazobenzene The mass fraction ω was adjusted to 0.32, and the other steps were unchanged. The photosoftening degree of the finally prepared PAAB / PMMA hybrid film is as follows: figure 1 and figure 2 shown.

Embodiment 3

[0028] Embodiment 3: a kind of method that regulates the photosoftening degree of PAAB / PMMA mixed film by regulating aminoazobenzene content, embodiment 3 is basically the same as embodiment 1, difference is only in 1-2) the polyaminoazobenzene The mass fraction ω was adjusted to 0.5, and the other steps remained unchanged. The photosoftening degree of the finally prepared PAAB / PMMA hybrid film is as follows: figure 1 and figure 2 shown.

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Abstract

The invention discloses a method for regulating light softening degree of a PAAB / PMMA mixed film by adjusting of content of aminoazobenzene, and the method comprises preparing of the PAAB / PMMA mixed film and testing of the light softening degree of the film, wherein in the process of preparing of the PAAB / PMMA mixed film, the mass fraction of PAAB in a PAAB / PMMA liquid mixture is a variable, the PAAB / PMMA liquid mixture is dissolved in THF for fully stirring for 24 hours, the liquid mixture is pipetted to the surface of a glass slide for preparing of the PAAB / PMMA mixed film by use of a spin-coating method, and the content of the aminoazobenzene in the mixed film is controlled by regulating of the mass fraction of the PAAB so as to achieve the purpose of controlling of the light softening degree of the PAAB / PMMA mixed film. The content of the aminoazobenzene in the PAAB / PMMA mixed film is in direct proportion to the degree of the light softening degree of the PAAB / PMMA mixed film. The method utilizes a simple and quick operation mode to adjust the content of the aminoazobenzene so as to avoid complicated and tedious operation steps, long preparation time, loss of expensive equipment and experimental consumables.

Description

technical field [0001] The invention relates to a method for controlling the mechanical properties of a polymer film, in particular to a method for regulating the photosoftening degree of a PAAB / PMMA mixed film by adjusting the content of aminoazobenzene. Background technique [0002] The photosoftening behavior of azophenyl materials has attracted widespread attention and has been widely used in people's lives. In addition to suppressing film surface wrinkling, it can also be used to prevent the formation of film surface cracks. The properties can be applied to the controllable construction of wrinkle-free / crack-free flexible electronic devices, etc. However, the research on the light softening of PAAB / PMMA hybrid film is not particularly sufficient in the prior art. Contents of the invention [0003] Aiming at the above-mentioned prior art, the present invention proposes a method for regulating the photosoftening degree of PAAB / PMMA mixed film by adjusting the content o...

Claims

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Application Information

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IPC IPC(8): C08J5/18C08L33/12C08L79/00
CPCC08J5/18C08J2333/12C08J2379/00C08J2433/12C08J2479/00C08L33/12C08L79/00C08L2203/16
Inventor 鲁从华杨成枫姬海鹏
Owner TIANJIN UNIV
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