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Surface-absorbing sugar-containing polymer and method for producing the same

A surface adsorption and polymer technology, applied in the field of sugar-containing polymers, can solve the problems that the surface adsorption function of sugar-containing polymers needs to be improved, and achieve the effects of good surface modification universality, easy operation, and cost-saving production

Active Publication Date: 2018-10-30
SUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the end of the 20th century, researchers have used the characteristics of sugar-containing polymers to conduct in-depth research on them and obtained a large number of research results, but the surface adsorption function of sugar-containing polymers needs to be improved

Method used

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  • Surface-absorbing sugar-containing polymer and method for producing the same
  • Surface-absorbing sugar-containing polymer and method for producing the same
  • Surface-absorbing sugar-containing polymer and method for producing the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Weigh 0.2g of 2-(methacrylamido) glucopyranose, 36mg of dopamine methacrylamide, 0.5mg of copper powder, 1.9mg of isobutyronitrile dithionaphthoate and 0.3μL of α- Ethyl bromoisobutyrate was dissolved in 1 mL of dimethyl sulfoxide, and reacted for 8 hours at 25°C under room temperature and oxygen-free conditions in one pot, then methanol was used as the precipitant, and the product was slowly added dropwise to 200 mL of precipitant methanol to make it Agglomerate to obtain a white precipitate, centrifuge, dry, and weigh.

[0033] The structural formula of the prepared sugar-containing polymer PDMA-MAG with surface adsorption is as follows:

[0034]

[0035] Among them, n:b=1:5, the molecular weight is 6500, and the molecular weight distribution is about 1.2, such as figure 1 Shown.

[0036] After mixing 50 mL, 0.1 mol / L tris solution with 22.9 mL, 0.1 mol / L hydrochloric acid, add water to dilute to 100 mL, adjust the pH of the mixed solution to 8.2, and prepare a Tris-Hcl sol...

Embodiment 2

[0040] Weigh 0.5 g of 2-(methacrylamido) galactopyranose, 56 mg of dopamine methacrylamide, 2 mg (excess) copper wire, 0.9 mg of azobisisobutyronitrile and 6.25 mg of 4-cyano- 4-(Phenylthioformylthio)pentanoic acid was dissolved in 1mL of dimethyl sulfoxide, reacted in one-pot reaction at 25℃, room temperature and anaerobic conditions for 8h, and then coagulated in 200ml methanol to obtain a white precipitate , Centrifugation, drying, weighing.

[0041] After mixing 50ml, 0.1mol / L tris solution and 22.9ml, 0.1mol / L hydrochloric acid, add water to dilute to 100mL, adjust the pH of the mixed solution to 8.2, and prepare a Tris-HCl solution.

[0042] Take 0.2 g of the sugar-containing polymer PDMA-MAG with surface activity and dissolve it in 10 mL of the prepared Tris-HCl solution to obtain a mixed solution. Place the silicon wafer in a petri dish, and add the above-mentioned mixed liquid dropwise to the silicon wafer. Immerse, put in a cool place at room temperature, wash the surfac...

Embodiment 3

[0044] Weigh 0.25g of 2-(methacrylamido) glucopyranose mannose, 44.7mg dopamine methacrylamide, 1mg iron powder and 2.2mg copper bromide powder composition, 1.2uL 2-bromopropionic acid The methyl ester and 4.2 mg of 4-cyano-4-(phenylthioformylthio)pentanoic acid N-succinimidyl ester were dissolved in 1 mL of dimethyl sulfoxide, and there was no oxygen at room temperature at 25°C. The conditions were one-pot reaction for 8 hours, and then coagulation in methanol to obtain a white precipitate, which was centrifuged, dried, and weighed.

[0045] After mixing 50ml, 0.1mol / L tris solution and 22.9ml 0.1mol / L hydrochloric acid, add water to dilute to 100ml, adjust the pH of the mixed solution to 8.2, and make up a Tris-HCl solution.

[0046] Take 0.2 g of the sugar-containing polymer PDMA-MAG with surface activity and dissolve it in the prepared Tris-HCl solution to obtain a mixed solution, place the polystyrene sheet in a petri dish, and add the above mixed solution dropwise to the poly...

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Abstract

The invention discloses a method for preparing a sugar-containing polymer with surface adsorption, which uses methacrylamide-based sugar-containing monomers and dopamine-based monomers as raw materials, adds initiators and chain transfer agents, and adds catalysts. method for preparation. The sugar-containing polymer prepared by the invention not only has water solubility but also has good surface adsorption performance, and can be used for preparing functional sugar-containing polymer materials. The dopamine monomer has a catechol functional group, and the sugar-containing polymer prepared by the present invention forms a covalent bond or a strong non-covalent bond with the material surface through the catechol functional group and is adsorbed on the material surface. Adhesion is through the formation of bidentate chelation between the hydroxyl group in the catechol functional group and the metal oxide surface, while the adhesion to mica, glass and polymer substrates is through charge or hydrogen bonding.

Description

Technical field [0001] The invention relates to a sugar-containing polymer with surface adsorption and a preparation method thereof. Background technique [0002] Sugar (carbohydrate) is a building block of many natural products in nature, a common energy source in biology, and a very important multivalent ligand (receptor). The specific binding of sugar and lectin protein includes the basis of many life processes such as cell recognition, pathogen infection, cell sorption and differentiation, and is one of the most important research topics in the current scientific field. Since the end of the twentieth century, researchers have used the characteristics of sugar-containing polymers to conduct in-depth research on them and obtained a large number of research results, but the surface adsorption function of sugar-containing polymers needs to be improved. Summary of the invention [0003] In order to solve one or more of the above technical problems, the present invention provides a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F220/58C08F220/60
CPCC08F220/58C08F220/603
Inventor 陈高健彭伦
Owner SUZHOU UNIV
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