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Preparation method of polyproline helical nanometer fiber

A polyproline helix, nanofiber technology, applied in the directions of nanotechnology, nanotechnology, fiber chemical characteristics, etc., can solve the problems of good reliability, difficult to apply LB membrane method, difficult to obtain reliable results, etc., and achieves the preparation method. simple effect

Active Publication Date: 2017-11-07
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Among them, the helical fiber structure prepared by the direct preparation method is affected by solvent evaporation and molecular structure, and it is difficult to obtain reliable results; the LB film method is difficult to apply to molecules with complex structures; the solvent vapor annealing method has low requirements for molecular structure and good reliability. received widespread attention

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  • Preparation method of polyproline helical nanometer fiber
  • Preparation method of polyproline helical nanometer fiber
  • Preparation method of polyproline helical nanometer fiber

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Embodiment Construction

[0023] Preferred embodiments of the present invention are described in detail as follows:

[0024] The invention relates to the preparation of polyproline helical nanofibers.

[0025] 1. In a 10mL sample bottle, dissolve a certain amount of polymer in chloroform to prepare a chloroform solution with a concentration of 0.02g / L-0.002g / L. After standing for 30 minutes, take 8μL of the solution and add it dropwise to a 3× 3mm mica.

[0026] 2. Place the mica under a nitrogen atmosphere for 30 minutes, then put it into a 400mL container and add 0.8mL of chloroform, seal the container and keep it for 72 hours. Atomic force microscopy images of polyproline helical nanofibers are shown in the attached figure 1 .

[0027] The embodiments of the present invention have been described above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned embodiments, and various changes can also be made according to the invention and creati...

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Abstract

The invention relates to a preparation method of polyproline helical nanometer fiber. The polyproline spiral nanometer fiber is made from polyproline, the side chain of which is modified by alkoxy ether groups, through chloroform solvent steam annealing. The polyproline spiral nanometer fiber is successfully made on a dry surface in a non-solvent environment. Since the helical structure has a significant effect in the biological field, so that the polyproline helical nanometer fiber has high application value in the field of a biological material. The fiber is responsive to temperature.

Description

technical field [0001] The invention relates to a method for preparing polyproline helical nanofibers, in particular to a method for preparing polyproline helical nanofibers through solvent vapor annealing. Background technique [0002] The helical structure is a structure that exists widely in living organisms and has great significance for human life activities. Helical structures exist in a wide variety of substances, from complex DNA and proteins to the simple structure of polymethylacrylate. The existence of the helical structure endows DNA, protein and other substances with various wonderful physical and chemical properties. In market applications, many temperature-sensitive sensors rely on the helical structure to achieve the function of thermal response. However, whether in nature or in artificial materials, the helical structure mostly exists in solution, and it is difficult to exist on the surface of dry objects. In order to apply the helical structure more wide...

Claims

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Application Information

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IPC IPC(8): D01F6/82B82Y30/00
CPCB82Y30/00D01F6/82
Inventor 张阿方邵烽张修强赵鑫刘坤
Owner SHANGHAI UNIV