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Preparation method of polymer film with periodic nano-structure and template used by same

A polymer film and nanostructure technology, applied in the field of polymer film preparation, can solve the problems of high cost, time-consuming, low repeatability, etc., and achieve the effects of low cost, major economic benefits, and high repeatability

Inactive Publication Date: 2010-10-27
SHANGHAI INST OF APPLIED PHYSICS - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0017] The technical problem to be solved by the present invention is to overcome the defects of low repeatability, high cost and long time-consuming of the existing method for preparing periodic nanostructured polymer membranes, and to apply the traditional solution casting method to periodic nanostructured polymer membranes In the preparation method of the present invention, a method for preparing a periodic nanostructured polymer film with good repeatability, fast preparation speed, simple operation and economy is provided.

Method used

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  • Preparation method of polymer film with periodic nano-structure and template used by same
  • Preparation method of polymer film with periodic nano-structure and template used by same
  • Preparation method of polymer film with periodic nano-structure and template used by same

Examples

Experimental program
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Embodiment 1

[0042] Prepare the template:

[0043] 1. Deposit mist gold onto a 1mm×1mm glass plate by vapor deposition, so that the thickness of the metal phase is 1200nm; the height of the glass plate is 0.5mm;

[0044] 2. Use the soft X-ray of the synchronous light source to etch the metallography from the angle perpendicular to the glass plate. The etching is controlled by a program. The first ray is emitted to etch away the gold bars of 150×1200nm, the ray source moves 150nm, and the second ray is emitted. By analogy, a template with a stripe width of 150nm and a stripe spacing of 150nm is finally obtained. Soft X-ray of Synchrotron Light Source Provided by Synchrotron Light Source of University of Science and Technology of China.

Embodiment 2

[0046] Select a 1mm×1mm silicon wafer, and use the soft X-ray of the synchronous light source to etch the metallographic phase from the angle perpendicular to the glass plate. The etching is controlled by a program. The first ray is emitted to etch away a 20×1200nm silicon wafer, the ray source moves 20nm, and the second ray is emitted. By analogy, a template with a stripe width of 20nm and a stripe spacing of 20nm is finally obtained. Soft X-ray of Synchrotron Light Source Provided by Synchrotron Light Source of University of Science and Technology of China.

[0047] The templates used in the following implementations are all prepared by the method of Example 1.

Embodiment 3

[0048] Example 3 Polyethersulfone (PES) polymer membrane (membrane 1) with periodic nanostructure

[0049] Weigh 1 gram of polyethersulfone (weight-average molecular weight: 800,000) (PES) powder with an electronic balance, with a particle size of 0.2 mm. Put the weighed powder into a 150 ml Erlenmeyer flask, add N-methylpyrrolidone (NMP) until the total weight of the solution is 100 grams, heat and dissolve the solution in an ordinary oven at 60 degrees Celsius for 3 days, and prepare the casting solution (The concentration of the casting liquid is 1%). After the obtained casting liquid was left to stand for defoaming, 1 mL of the casting liquid was sucked with a pipette gun and added dropwise on the silicon wafer template. Spin coating at 100 rpm on a glue homogenizer for 600 seconds to form a film. The spin-coated film (together with the silicon wafer template) is placed in a common oven at 60 degrees Celsius and dried to a constant weight to obtain a dry polymer film (to...

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Abstract

The invention discloses a preparation method of a polymer film with a periodic nano-structure, which comprises the following steps that: (1) a polymer material is dissolved in an organic solvent by heating to obtain a mold casting liquid; (2) the mold casting liquid is dripped on the template, and a wet polymer film is prepared on the template by a spin-coating method; (3) the organic solvent in the wet polymer film is removed until the weight of the polymer film is constant, and then a dry polymer film is obtained; and (4) the dry polymer film is removed from the template in deionized water by ultrasonic vibration, and then the product of the invention is obtained. The invention also provides a template used in the preparation method of the polymer film with the periodic nano-structure. The preparation method of the polymer film with the periodic nano-structure has good repetitiveness and fast preparation speed, and is easy and economical.

Description

technical field [0001] The invention relates to a preparation method of a polymer film and a used template, in particular to a preparation method of a polymer film with a periodic nanostructure and a used template. Background technique [0002] As a research object, the polymer membrane with nanopattern structure is widely used in biology and bionics research. [0003] In order to investigate the influence of the chemical structure of the substrate and the pattern shape on the migration and division behavior of certain cells, Literature 1 reported (Wang Xuefeng et al.) using a polarized laser with a wavelength of 266nm to treat polystyrene films to obtain simultaneous Methods of polymer films with different nanopattern patterns and hydrophilic and hydrophobic properties, etc. [0004] Document 2 uses electron beam micro-exposure technology, and uses electron beam focusing and direct writing to etch patterns with a precision less than 200nm. [0005] In addition, there are ...

Claims

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Application Information

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IPC IPC(8): C08J5/18
Inventor 李景烨黄庆邓波于洋吕敏
Owner SHANGHAI INST OF APPLIED PHYSICS - CHINESE ACAD OF SCI
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