Glass fibers of grafted temperature-sensitive hydrogel

A temperature-sensitive hydrogel and glass fiber technology, applied in the field of glass fiber, can solve the problems of poor mechanical properties, limited application effect, slow response speed of hydrogel, etc., and achieves the effects of good heat resistance, controllable reaction and low cost

Inactive Publication Date: 2015-12-09
TIANJIN POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most hydrogels prepared by traditional methods have slow response speed and poor mechanical properties, which largely limit their application effects.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Take a glass fiber (GF) with a length of 20cm and completely soak it in 1mol / L hydrochloric acid for 15 minutes, then add a coupling agent solution (18mL methanol solution, 2mL distilled water, 0.25mL γ-methacryloxypropyltrimethoxysilane (MPS )), adjust the pH to 4.0-5.0 with acetic acid; soak at room temperature for 2 hours, take it out to dry, and dry at 130°C for 4 hours to obtain GF-MPS coupled with a coupling agent. Appropriate amount of methanol washing, washing, drying.

Embodiment 2

[0016] Weigh a certain amount of 0.75mmol of AAc-L-Phe and 14.25mmol of NIPAM, add 15mL of absolute ethanol and water mixed solvent (volume ratio 2:3) and mix well, add 0.75mmol of MBAA, and make After dissolving, add 0.15mmol of KPS, shake fully to make the solution completely transparent. Take 0.1g of GF-MPS that has been coupled and submerge all GF-MPS in the prepared solution. Seal it, stay in the water bath at 65°C for 4 hours, take out the GF-MPS-PNIPAM-AAc-L-Phe with the thermosensitive chiral gel, soak it in deionized water for three days, change the water every 12 hours, and let it stand It completely dissolves and expands at room temperature.

Embodiment 3

[0018] Weigh a certain amount of 1.5mmol of AAc-L-Phe and 13.5mmol of NIPAM, add 15mL of absolute ethanol and water mixed solvent (volume ratio 2:3) and mix well, add 0.75mmol of MBAA, and make After dissolving, add 0.15mmol of KPS, shake fully to make the solution completely transparent. Take 0.1g of GF-MPS that has been coupled and submerge all GF-MPS in the prepared solution. Seal it, stay in the water bath at 65°C for 4 hours, take out the GF-MPS-PNIPAM-AAc-L-Phe with the thermosensitive chiral gel, soak it in deionized water for three days, change the water every 12 hours, and let it stand It completely dissolves and expands at room temperature.

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PUM

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Abstract

The invention discloses glass fibers of grafted temperature-sensitive hydrogel and a preparing method. The preparing method mainly includes the steps that surfaces of glass fibers are modified with gamma-methacryloxy propyl trimethoxy silane (MPS); in ethanol water, under the action of cross-linking agent N, N-methylene-bis(acrylamide) (MBAA), initiator potassium peroxodisulfate (KPS) and chiral monomers (AAc-L-Phe), the glass fibers GF-MPS-PNIPAM-AAc-L-Phe of grafted temperature-sensitive hydrogel are prepared through a free radical copolymerization method. The glass fibers have the advantages of being simple in technological method, low in cost, convenient to industrially apply and popularize and capable of being used in the field of biological medicine and having hydrophility and pH responsiveness.

Description

technical field [0001] The invention relates to an intelligent polymer material, in particular to a glass fiber whose surface is grafted with a temperature-sensitive hydrogel containing a chiral recognition group. The temperature-sensitive gel grafted on the surface of this material can swell or shrink in volume when the temperature changes. The chiral recognition group in the gel endows the material with the function of recognizing and adsorbing chiral molecules, which is a potential chiral molecule. sex split material. Background technique [0002] In recent years, the research and development of chiral separation technology and separation materials has become a research hotspot in the interdisciplinary fields of new materials and drug research. This is because optically pure chiral drugs are more effective (the curative effect of some chiral drugs is several times or even dozens of times that of the original racemic drugs), and they are safer and have less side effects. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F292/00
Inventor 陈娇娇银月周彤傅宏俊廖启江
Owner TIANJIN POLYTECHNIC UNIV
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