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Degradable high polymer material as well as preparation method and application thereof

A technology of polymer materials and polymerization reactions, applied in circuits, electrical solid-state devices, semiconductor devices, etc., can solve problems such as difficult control of transient response, loss of function, difficulty in meeting the practical application requirements of transient electronic devices, etc.

Active Publication Date: 2021-06-08
UNIV OF SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, silk protein dissolves quickly in aqueous solution, and its transient response is difficult to control. This process causes the device to lose its function without degradation, and it is usually difficult to meet the practical application requirements of transient electronic devices.

Method used

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  • Degradable high polymer material as well as preparation method and application thereof
  • Degradable high polymer material as well as preparation method and application thereof
  • Degradable high polymer material as well as preparation method and application thereof

Examples

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preparation example Construction

[0024] The invention discloses a preparation method of a degradable polymer material, comprising:

[0025] Mix hydrogen phosphate bis(methacryloyloxyethyl) ester, polyethylene glycol diacrylate, crosslinking agent containing mercapto group, free radical polymerization initiator and solvent to obtain a mixed solution, and the mixed solution undergoes a polymerization reaction to obtain the obtained The above-mentioned degradable polymer materials.

[0026] In some embodiments of the present invention, the concentration of bis(methacryloyloxyethyl) phosphate in the mixed solution is 0.5 to 85wt.%, such as 0.5wt.%, 0.6wt.%, 0.8wt.% .%, 1wt.%, 1.5wt.%, 2wt.%, 2.5wt.%, 3wt.%, 5wt.%, 8wt.%, 10wt.%, 15wt.%, 20wt.%, 25wt.%, 30wt .%, 35wt.%, 40wt.%, 45wt.%, 50wt.%, 55wt.%, 60wt.%, 65wt.%, 70wt.%, 75wt.%, 80wt.%, 85wt.%;

[0027] In some embodiments of the present invention, the concentration of the crosslinking agent containing mercapto groups in the mixed solution is 13.2 to 70.1wt....

Embodiment 1

[0060] 1.45g hydrogen phosphate bis(methacryloyloxyethyl) ester, 0.3g polyethylene glycol diacrylate (Mw=250), 1.08g tetrakis(3-mercapto propionate) pentaerythritol ester, 0.5g acetonitrile, passed Stir to form a transparent and clear solution, add 0.01g of benzoin dimethyl ether to the above mixed solution, stir evenly and fully dissolve. Wherein, it can be known by calculation that based on the total mass in the transparent solution, the amount of hydrogen phosphate bis(methacryloyloxyethyl) ester is 43.4wt.%, the amount of polyethylene glycol diacrylate is 9wt.%. The amount of (3-mercaptopropionic acid) pentaerythritol ester is 32.3wt.%, the balance is solvent, and the amount of benzoin dimethyl ether is 0.3wt.%.

[0061] Fill the prepared pre-polymerization solution system into the self-made transparent mold gap (0.5mm), and irradiate with 365nm ultraviolet light for 5 minutes to obtain a transparent polymer film (that is, a degradable polymer material substrate).

Embodiment 2

[0063] The experiment was carried out in a similar manner to Example 1, except that the weight average molecular weight of polyethylene glycol diacrylate was changed to 1000 to obtain a transparent polymer film.

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Abstract

The invention relates to a degradable high polymer material and a preparation method and application thereof. The preparation method comprises the following steps: mixing di (methacryloyloxyethyl) hydrogen phosphate, polyethylene glycol diacrylate, a sulfydryl-containing cross-linking agent, a free radical polymerization initiator and a solvent to obtain a mixed solution, and carrying out polymerization reaction on the mixed solution to obtain the degradable high polymer material. The preparation process of the pH-responsive degradable polymer substrate is simple, the pH-responsive degradable polymer substrate can be prepared through multiple routes, the raw materials are easy to obtain, cheap and safe, and industrial large-scale preparation can be realized; according to the degradable polymer substrate, the thickness of the polymer substrate can be simply regulated and controlled by regulating and controlling a self-made mold.

Description

technical field [0001] The invention relates to the fields of functional polymer substrates and electronics and semiconductor processing, in particular to a degradable polymer material and its preparation method and application. Background technique [0002] Electronic equipment and microelectronic devices have become indispensable items in daily life, and have broad application prospects in the fields of information, energy, education, medical treatment, and national defense. However, electronic devices that are eliminated or damaged all the time bring serious environmental problems. Therefore, transient electronic devices that can maintain high performance and stable operation when working, and can achieve electronic device degradation in a short period of time when needed It is an important research direction at present. Transient electronics refers to a new type of electronic device whose functional components, including substrate materials, inorganic semiconductor mate...

Claims

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Application Information

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IPC IPC(8): C08F230/02C08F222/20C08F283/06C08J5/18C08L43/02C08L51/08H01L23/14
CPCC08F230/02C08F283/065C08J5/18H01L23/145C08J2343/02C08J2351/08C08F222/102
Inventor 徐航勋张颖
Owner UNIV OF SCI & TECH OF CHINA
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