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Three-dimensional ordered micron porous polymer membrane and its preparing method

A polymer membrane, three-dimensional ordered technology, applied in chemical instruments and methods, membrane technology, semi-permeable membrane separation, etc., can solve the problems of inability to achieve dynamic control, cumbersome preparation process, low yield, etc., and achieve a simple and easy preparation method. The effect of simple operation, simple preparation method and low cost

Inactive Publication Date: 2005-10-05
INST OF CHEM CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, these technologies have the disadvantages of cumbersome preparation process, time-consuming and low yield, and the pore size cannot be dynamically adjusted during the preparation of polymer membranes.

Method used

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  • Three-dimensional ordered micron porous polymer membrane and its preparing method
  • Three-dimensional ordered micron porous polymer membrane and its preparing method

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Effect test

Embodiment 1

[0037] Polystyrene (PS) was dissolved in the volatile organic solvent chloroform (CHCl 3 ) to prepare a dilute polymer solution with a concentration of 1% by weight, then deposit a certain amount of the dilute solution on the plane of a smooth glass substrate, volatilize freely at room temperature in the atmosphere for 0.5 minutes, turn on the radiation source and heat for about 5 A three-dimensional ordered microporous polymer membrane with a pore diameter of 2.1 μm is obtained within minutes. like figure 2 shown.

Embodiment 2

[0039] Dissolve polystyrene (PS) in volatile organic solvent carbon disulfide (CS2 ) to prepare a dilute polymer solution with a concentration of 1% by weight, and then deposit a certain amount of the dilute solution on the flat surface of a smooth silicon wafer substrate, volatilize freely at room temperature in the atmosphere for 1 minute, turn on the irradiating light source and heat for about In 3 minutes, a three-dimensional ordered microporous polymer membrane with a pore diameter of 2.5 μm is obtained.

Embodiment 3

[0041] Polystyrene (PS) was dissolved in the volatile organic solvent chloroform (CHCl 3 ) to prepare a dilute polymer solution with a concentration of 2% by weight, and then deposit a certain amount of the dilute solution on the plane of a smooth aluminum sheet substrate, volatilize freely at room temperature in the atmosphere for 1.5 minutes, turn on the radiation source and heat for about Within 3 minutes, a three-dimensional ordered microporous polymer membrane with a pore diameter of 3.5 μm was obtained.

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Abstract

The present invention relates to a 3-D ordered micro-pore polymer film, its preparation method and application. Its preparation method includes the following steps: dissolving polymer is inorganic solvent with volatility, making the obtained dilute solution be deposited on the plane of smooth base, freely volatilizing for a certain time at room temperature in the atmosphere, then opening irradiation light source and heating so as to obtain the 3-D ordered micron-pore polymer film, and the diameter of said micron-pore is 0.5-15 micrometers, and can be dynamically regulated in the preparation process. Said invented polymer film has extensive application range, can be used in fields of photonics, optoelectronics and biomedicine, etc.

Description

technical field [0001] The invention belongs to the field of microporous membranes with micro-nano structures of polymer materials, in particular to a three-dimensional ordered microporous polymer membrane, and a dilute polymer solution containing a volatile organic solvent, which is evaporated and irradiated at room temperature. Method for preparing three-dimensional ordered microporous polymer film by heating; and use of three-dimensional ordered microporous polymer film technical background [0002] Microporous polymer membrane is a kind of special polymer material, which plays an increasingly important role in chemistry, biochemistry, medicine, petroleum, electronics, food and separation technology. Generally, microporous materials can be produced by template replication, phase separation, stretching or dissolution methods. Chinese invention patent application number: 00132532.9 discloses a template replication technology to prepare microporous...

Claims

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Application Information

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IPC IPC(8): B01D69/06B01D71/06
Inventor 高雪峰翟锦江雷
Owner INST OF CHEM CHINESE ACAD OF SCI
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