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Method for in-situ polymerizing and preparing polypyrrole-coated polylactic acid electrospun composite membrane

A polypyrrole-coated lactic acid and electrospinning technology, which is used in textiles and papermaking, fiber treatment, coating, etc.

Inactive Publication Date: 2011-08-31
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, there is no report on the preparation of polypyrrole-coated polylactic acid electrospun membrane by in-situ polymerization.

Method used

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  • Method for in-situ polymerizing and preparing polypyrrole-coated polylactic acid electrospun composite membrane

Examples

Experimental program
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Embodiment 1

[0016] 0.008 mole of pyrrole was dissolved in 1 liter of deionized water to obtain a 0.008 mole / liter pyrrole solution; 0.008 mole of sodium benzenesulfonate was dissolved in 1 liter of deionized water to obtain a 0.008 mole / liter sodium benzenesulfonate solution; 0.02 mole of ferric chloride is dissolved in 1 liter of deionized water to obtain 0.02 mol / liter of ferric chloride solution; pyrrole solution and sodium benzenesulfonate solution are mixed according to a volume ratio of 5: 5, and 0.016 mole / liter of pyrrole and sodium benzenesulfonate mixed solution; put a 20 × 20 square mm homemade polylactic acid electrospun membrane into 2 ml of pyrrole and sodium benzenesulfonate mixed solution, at 1 ~ 4 o After soaking for 1 hour at C, add 2 milliliters of ferric chloride solution; o C for 12 hours; take out the electrospun membrane, and dry it at room temperature for 24 hours to obtain a polypyrrole-coated polylactic acid electrospun composite membrane. The average fiber diam...

Embodiment 2

[0018] 0.008 mole of pyrrole was dissolved in 1 liter of deionized water to obtain a 0.008 mole / liter pyrrole solution; 0.008 mole of sodium benzenesulfonate was dissolved in 1 liter of deionized water to obtain a 0.008 mole / liter sodium benzenesulfonate solution; 0.02 mole of ferric chloride is dissolved in 1 liter of deionized water to obtain 0.02 mol / liter of ferric chloride solution; pyrrole solution and sodium benzenesulfonate solution are mixed according to the volume ratio of 6:4, and 0.016 mole / liter of pyrrole and sodium benzenesulfonate mixed solution; put a 20 × 20 square mm homemade polylactic acid electrospun membrane into 2 ml of pyrrole and sodium benzenesulfonate mixed solution, at 1 ~ 4 o After soaking for 1 hour at C, add 2 milliliters of ferric chloride solution; o C for 24 hours; take out the electrospun membrane, and dry it at room temperature for 24 hours to obtain a polypyrrole-coated polylactic acid electrospun composite membrane. The average fiber dia...

Embodiment 3

[0020] 0.008 mole of pyrrole was dissolved in 1 liter of deionized water to obtain a 0.008 mole / liter pyrrole solution; 0.008 mole of sodium benzenesulfonate was dissolved in 1 liter of deionized water to obtain a 0.008 mole / liter sodium benzenesulfonate solution; 0.02 mole of ferric chloride is dissolved in 1 liter of deionized water to obtain 0.02 mol / liter of ferric chloride solution; pyrrole solution and sodium benzenesulfonate solution are mixed according to the volume ratio of 4: 6, and 0.016 mole / liter of pyrrole and sodium benzenesulfonate mixed solution; put a 20 × 20 square mm homemade polylactic acid electrospun membrane into 2 ml of pyrrole and sodium benzenesulfonate mixed solution, at 1 ~ 4 o After soaking for 1 hour at C, add 2 milliliters of ferric chloride solution; o C for 36 hours; take out the electrospun membrane, and dry it at room temperature for 24 hours to obtain a polypyrrole-coated polylactic acid electrospun composite membrane. The average fiber di...

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Abstract

The invention relates to a method for in-situ polymerizing and preparing a polypyrrole-coated polylactic acid electrospun composite membrane. The method includes the steps: (1) preparing pyrrole solution, (2) preparing benzene sulfonate solution, (3) preparing ferric chloride solution, (4) preparing mixed solution of pyrrole and benzene sulfonate, and (5) in-situ polymerizing a pyrrole-coated polylactic acid electrospun membrane to obtain the polypyrrole-coated polylactic acid electrospun composite membrane. The polypyrrole-coated polylactic acid electrospun composite membrane is a new biological material with a great application value, and especially the polypyrrole-coated polylactic acid electrospun composite membrane can be applied to bionic nerve tissue engineering materials and nerve repair materials.

Description

technical field [0001] The invention belongs to the field of polymer composite materials, and in particular relates to a method for preparing polypyrrole-coated polylactic acid electrospinning composite membranes by in-situ polymerization. Background technique [0002] At present, in order to prepare good nerve tissue engineering materials and artificial nerve repair materials, many conductive polymer materials have been studied. For example, polypyrrole, polyaniline, and polythiophene, but due to the insufficient performance of these materials, their application in the biomedical field is limited. In order to improve the performance of these conductive polymer materials so that they can be well applied in the field of biomedicine, researchers have studied many composite technologies of conductive materials. At present, there is no report on the preparation of polypyrrole-coated polylactic acid electrospun membrane by in-situ polymerization. [0003] Polylactic acid is a b...

Claims

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Application Information

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IPC IPC(8): D06M15/37D06M13/256A61L27/34D06M101/32
Inventor 黄忠兵尹光福廖晓明姚亚东陈显春
Owner SICHUAN UNIV
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