Visible light triggered material surface graft polymerization based functional modifying method

A technology of surface functionalization and surface grafting, which is applied in chemical instruments and methods, metal material coating technology, organic chemistry, etc., can solve the problems that cannot be modified by surface, and achieve simple operation, wide variety, and high grafting speed fast effect

Inactive Publication Date: 2014-12-10
SUZHOU FENGYA BIOTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this method solves the surface modification problem of polyurethane materials, because this method is only for polyurethane materials, it cannot be used for surface modification of other types of materials.

Method used

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  • Visible light triggered material surface graft polymerization based functional modifying method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Example 1: Temperature-sensitive functional modification of gold flake surface

[0048] Step 1) Preparation of dopamine isobutyl bromide compound:

[0049] a. Put 3.83g of borax, 1.9g of dopamine hydrochloride, and 100mL of water in a 250mL reaction device, stir to dissolve and adjust the pH value to 9-10 with aqueous sodium carbonate solution; slowly drop 1.15g of 2-bromoisobutyryl bromide into In the reaction device, at room temperature, stirring and reacting for 24 hours to obtain a reaction solution;

[0050] b. adopt concentrated hydrochloric acid to adjust the reaction solution obtained above to an acidic reaction solution with a pH value of 2, and use ethyl acetate to extract and separate the acidic reaction solution. The number of extractions is selected for 3 times, and of course it can also be used 4 times or more than 4 times. The organic phases obtained by each extraction are combined to obtain an organic phase;

[0051] c. drying the organic phase obtaine...

Embodiment 2

[0057] Example 2: pH-sensitive functional modification of glass slide surface

[0058] Step 1) Preparation of dopamine isobutyl bromide compound:

[0059] a. Put 3.83g of borax, 1.9g of dopamine hydrochloride, and 100mL of water in a 250mL reaction device, stir to dissolve and adjust the pH value to 9-10 with aqueous sodium carbonate solution; slowly drop 1.15g of 2-bromoisobutyryl bromide into In the reaction device, at room temperature, stirring and reacting for 24 hours to obtain a reaction solution;

[0060] b. adopt concentrated hydrochloric acid to adjust the reaction solution obtained above to an acidic reaction solution with a pH value of 2, and use ethyl acetate to extract and separate the acidic reaction solution. The number of extractions is selected for 3 times, and of course it can also be used 4 times or more than 4 times. The organic phases obtained by each extraction are combined to obtain an organic phase;

[0061] c. drying the organic phase obtained above ...

Embodiment 3

[0067] Example 3: Functional Modification of Polydimethylsiloxane Diaphragm Surface Hydrophilic

[0068] Step 1) Preparation of dopamine isobutyl bromide compound:

[0069] a. Put 3.83g of borax, 1.9g of dopamine hydrochloride, and 100mL of water in a 250mL reaction device, stir to dissolve and adjust the pH value to 9-10 with aqueous sodium carbonate solution; slowly drop 1.15g of 2-bromoisobutyryl bromide into In the reaction device, at room temperature, stirring and reacting for 24 hours to obtain a reaction solution;

[0070] b. adopt concentrated hydrochloric acid to adjust the reaction solution obtained above to an acidic reaction solution with a pH value of 2, and use ethyl acetate to extract and separate the acidic reaction solution. The number of extractions is selected for 3 times, and of course it can also be used 4 times or more than 4 times. The organic phases obtained by each extraction are combined to obtain an organic phase;

[0071] c. drying the organic pha...

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Abstract

The invention discloses a visible light triggered material surface graft polymerization based functional modifying method. The functional modifying method comprises the steps of firstly, grafting iso-butyl-bromide on the surface of a material; and carrying out free radical graft copolymerization on the material and other functional vinyl monomers under the irradiation of visible light and in the presence of decacarbonyldimanganese to realize material surface graft modification. The visible light triggered material surface graft polymerization based functional modifying method has the remarkable characteristics: 1, materials which can be modified by using the modifying method are wide in range and can be organic polymer materials, inorganic nonmetallic materials and metal materials; 2, the modifying method is carried out at room temperature, and therefore, the reaction conditions are mild; 3, the modifying method is used for initiating polymerization graft modification under the condition of visible light and is particularly suitable for materials and functional monomers which cannot stably exist under a thermal polymerization condition; and 4, the modifying method is simple and convenient to operate, high in grafting efficiency and speed and strong in universality.

Description

technical field [0001] The invention belongs to the technical field of material modification, and relates to a modification method for material surface functionalization, in particular to a material surface graft polymerization functional modification method based on visible light. [0002] Background technique [0003] The civilization history of human society can be regarded as the development history of materials. Materials play a pivotal role in human activities. Precise control of the chemical properties of these materials is of great importance in the fields of materials science, chemistry and biotechnology. significance. Due to the limitations of the development of science and technology today, a material itself cannot fully meet all the physical and chemical properties that people need when using it. Therefore, functional modification of the surface of materials to obtain material surfaces with specific chemical properties has become an important measure to promote...

Claims

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Application Information

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IPC IPC(8): C08J7/18C08L83/04C07C231/02C07C233/18C03C17/28C23C22/60
Inventor 徐亚骏武照强陈红熊新红
Owner SUZHOU FENGYA BIOTECH
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