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Preparation method of intelligent amphoteric ion polymer material

A polymer material, zwitterion technology, applied in the fields of biomimetic materials, biomedicine, and drug release, it can solve problems such as inflammatory response and lack of biocompatibility, and achieve enhanced application function, strong practicability, and stable process operation. Effect

Inactive Publication Date: 2018-06-22
LANZHOU PETROCHEM COLLEGE OF VOCATIONAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most shape memory polymers do not have ideal biocompatibility. Taking shape memory polyurethane as an example, its implantation in the human body will cause the body's inflammatory response

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] A preparation method of an intelligent zwitterionic polymer material, comprising the steps of:

[0040] (1) Preparation of functional monomer: Add 13 parts of glycidyl methacrylate, 87 parts of deionized water and 1 part of hydroquinone into a reactor with a condenser. Raise the temperature to 85°C and stir the initial emulsion for 11 hours to form a homogeneous aqueous solution. Rotate the water in the mixed solution to remove hydroquinone with neutral aluminum oxide to obtain a light yellow liquid as a functional monomer: 2-methyl- 2-Acrylic acid-2,3-dihydroxypropyl ester.

[0041](2) Preparation of intelligent zwitterionic polymer: 20 parts of carboxybetaine methyl methacrylate, 6.5 parts of the above self-made functional monomers, 64 parts of deionized water, 2 parts of boric acid, 3 parts of polyvinyl alcohol, 1.5 parts Parts of ammonium persulfate were weighed and added to the reactor, stirred for about 2 hours to dissolve and mixed evenly, vacuumed and filled wi...

Embodiment 2

[0044] A preparation method of an intelligent zwitterionic polymer material, comprising the steps of:

[0045] (1) The preparation of the functional monomer is the same as in Example 1.

[0046] (2) Preparation of intelligent zwitterionic polymer: 22 parts of methacryloyl ethyl sulfobetaine, 3 parts of the above self-made functional monomers, 65 parts of deionized water, 3 parts of polyacrylic acid, 2 parts of boric acid, 2 parts Parts of ammonium persulfate were added into a three-necked flask and stirred for 3 hours to completely dissolve it, then evacuated and filled with nitrogen, and repeated several times to fully remove oxygen. Control the temperature at 30°C and add 3 parts of tetramethylethylenediamine dropwise, react with stirring for 1 hour, then pour into a polytetrafluoroethylene mold. Then the temperature was raised to 40°C and the reaction was static for 22 hours. When the reaction system became gelatinous, the temperature was raised to 55°C and dried for 10 h...

Embodiment 3

[0049] A preparation method of an intelligent zwitterionic polymer material, comprising the steps of:

[0050] Add 1.5 parts of N,N-methylenebisacrylamide and 67 parts of deionized water into a three-necked flask and stir for 1 to 2 hours. After being completely dissolved, add 20 parts of carboxybetaine methyl methacrylate, 5 parts of hydroxyethyl methacrylate, 2.5 parts of polyethylene oxide, and 2 parts of ammonium persulfate into the three-necked flask and continue to stir for 1 hour to make it completely Dissolve, evacuate and fill with nitrogen, repeat several times to fully remove oxygen. Control the temperature at 35°C and add 2 parts of sodium thiosulfate, react under stirring for 1 hour, then pour it into a polytetrafluoroethylene mold, raise the temperature to 45°C and stand still for 24 hours. When the reaction system did not flow obviously, the temperature was raised to 60°C and dried for 9 hours, then the temperature was raised to 90°C for 24 hours, and the polym...

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Abstract

The invention provides a preparation method of an intelligent amphoteric ion polymer material. The preparation method comprises the following steps: (1) dissolving an amphoteric ion monomer, a functional monomer, an enhancing agent, a crosslinking agent and a catalyst into water; then dropwise adding an accelerant at 20 to 40 DEG C and reacting; (2) raising the temperature to 40 to 55 DEG C and continually reacting until a system does not flow obviously; then gradually raising the temperature and drying to obtain the intelligent amphoteric ion polymer material. According to the method providedby the invention, a betaine monomer is used as a main raw material to prepare an intelligent high molecular material with shape memory, self-repairing and anti-pollution functions and the like.

Description

technical field [0001] The invention relates to a method for preparing an intelligent zwitterionic polymer material, in particular to a method for preparing a polymer material with functions such as shape memory, self-repair, and anti-pollution, and belongs to the technical fields of bionic materials, biomedicine, and drug release . Background technique [0002] At present, more and more artificial materials are widely used in the fields of biological detection, biochemical equipment, bioengineering materials and human implant materials. Among biomaterials, polymer materials have the advantages of a wide range of raw materials, flexible molecular design, diverse properties, and easy processing. Among them, intelligent polymer materials are one of the most rapidly developing materials. So-called smart materials are stimuli-responsive materials that strongly respond to changes in the surrounding environment, such as shape changes, surface characteristics or solubility, self-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F220/36C08F220/20C08F222/38C08F230/02C08K3/38
CPCC08F220/36C08F220/365C08F230/02C08K3/38C08K2003/387C08F220/20C08F222/385
Inventor 王有朋伍家卫罗资琴梁斌石星丽李薇祝贵威吕维华张海亮
Owner LANZHOU PETROCHEM COLLEGE OF VOCATIONAL TECH
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