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Preparation method of composite nano-fiber material with photo-electromagnetic characteristics

A composite nanofiber, photoelectromagnetic technology, applied in the direction of fiber treatment, spinning solution preparation, fiber chemical characteristics, etc., can solve the problems of complex operation, poor biocompatibility, high toxicity, etc., to achieve simple operation, avoid operating procedures, The effect of extending the range of application

Inactive Publication Date: 2015-04-22
HEILONGJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims to solve the problems of poor chemical stability, complex operation, poor biocompatibility and high toxicity of nanofiber materials prepared by existing methods, and provides a method for preparing composite nanofiber materials with photoelectromagnetic properties

Method used

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  • Preparation method of composite nano-fiber material with photo-electromagnetic characteristics
  • Preparation method of composite nano-fiber material with photo-electromagnetic characteristics
  • Preparation method of composite nano-fiber material with photo-electromagnetic characteristics

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specific Embodiment approach 1

[0014] Specific embodiment one: the preparation method of a kind of composite nanofiber material with photoelectromagnetic properties in this embodiment is carried out according to the following steps:

[0015] 1. Preparation of water-soluble polyfluorene PF-Na: ①Add 2,7-dibromofluorene and 1,3-dibromopropane to the first Schlenk bottle, then add tetrabutyl bromide to the first Schlenk bottle Ammonium and KOH aqueous solution with a mass fraction of 40% to 60% are reacted for 4h to 8h. After the reaction is completed, a solid product is obtained by extraction, washing, drying, suction filtration and rotary evaporation. The solid product is separated by column chromatography to obtain 2 , 7-dibromo-9,9-bis(3-bromopropyl)fluorene monomer; 2. Add terephthalic diboronic acid, step 1. obtained 2,7-dibromo-9,9- Two (3-bromopropyl) fluorene monomer and toluene, then add palladium catalyst and concentration be the Na of 3mol / L in the second Schlenk bottle 2 CO 3 Solution, vacuum, pa...

specific Embodiment approach 2

[0022] Specific embodiment 2: The difference between this embodiment and specific embodiment 1 is that the molar ratio of 2,7-dibromofluorene and 1,3-dibromopropane in step ① in step 1 is 1:8. Others are the same as the first embodiment.

specific Embodiment approach 3

[0023] Specific embodiment three: the difference between this embodiment and specific embodiment one or two is: the mass of step 1. described tetrabutylammonium bromide in step one and the mass fraction are the ratio of the volume of the KOH aqueous solution of 40%~60% 1g:30mL. Others are the same as those in Embodiment 1 or 2.

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Abstract

The invention discloses a preparation method of a composite nano-fiber material with photo-electromagnetic characteristics, and relates to a preparation method of a composite nano-fiber material with photo-electromagnetic characteristics, and aims at solving the problems that the nano-fiber material prepared by the existing method is poor in chemical stability, complicated in operation, poor in biocompatibility and large in toxicity. The method comprises the following steps: 1, preparing water-soluble polyfluorene (PF-Na), synthesizing a polyfluorene monomer with 2,7-dibromofluorene and 1,3-dibromopropane, synthesizing 9,9-bi(3-bromine propyl)-2-benzofiurene PF with phenylenebisboronic acid and the polyfluorene monomer, and synthesizing water-soluble polyfluorene PF-Na with PF and mercaptoacetic acid; 2, synthesizing water-soluble Fe3O4 nano-particles by virtue of a hydrothermal method; and 3, preparing the composite nano-fiber material with the photo-electromagnetic characteristics by wet-mixing and electrostatic spinning methods. The preparation method is used for preparing the composite nano-fiber material with the photo-electromagnetic characteristics.

Description

technical field [0001] The invention relates to a preparation method of a composite nanofiber material with photoelectromagnetic properties. Background technique [0002] In July 1990, the first international nanotechnology conference officially announced that nanomaterial science has become a new branch of material science. Since then, nanomaterials have attracted great interest and widespread attention from all over the world. In recent years, especially research on nanofibers and their applications has become a frontier hotspot. The small size effect of nanofiber materials makes them have excellent optical, electrical, magnetic, thermal and other properties, making them widely used in physics, chemistry, biology, medicine and other fields. [0003] It has been reported in the literature that the rare earth terbium complex Tb(BA) 3 phen and PVP, polyaniline and Fe 3 o 4 Nanoparticles were compounded, and photoelectromagnetic trifunctional nanofibers were prepared by el...

Claims

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Application Information

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IPC IPC(8): D01F8/10D01F8/16D01F1/10D01D1/02D01D5/00C08G61/02
Inventor 王淑红虢德超仲华孙治尧汪成高洋藏琳琳鲁镝思
Owner HEILONGJIANG UNIV
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