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A kind of preparation method of n-butyl cyanoacrylate nanowire

A technology of poly(n-butyl cyanoacrylate) and nanowires, which is applied in the field of biological carrier preparation, can solve the problems of harsh preparation process conditions, difficult control of nanowire size, generation of toxic and harmful substances, etc., and achieves low requirements on reaction conditions and biological Compatibility, no toxic side effects, low cost effect

Active Publication Date: 2017-09-22
ANHUI AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The preparation process conditions of these two methods are strict, the process steps are many and cumbersome, and the preparation process will produce toxic and harmful substances, etc.
For the preparation of conductive carbon nanowires, there are arc discharge method, pulsed laser evaporation method, chemical vapor phase method, etc. These preparation process conditions are demanding, the reaction process is uncontrollable, and the size of the produced nanowires is not easy to control.

Method used

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  • A kind of preparation method of n-butyl cyanoacrylate nanowire
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  • A kind of preparation method of n-butyl cyanoacrylate nanowire

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specific Embodiment 1

[0032] Such as figure 1 As shown, a method for preparing poly-n-butyl cyanoacrylate nanowires provided in this embodiment comprises the following steps:

[0033] Prepare the oil phase mixture: Disperse 10 μl of n-butyl α-cyanoacrylate and 0.15 ml of ethyl acetate in 5 ml of acetone.

[0034] Prepare the emulsified phase mixture: disperse 25 mg of emulsifier and 50 mg of stabilizer in 5 ml of pure water, the emulsifier is sodium lauryl sulfate, and the stabilizer is dextran-70; the passing concentration is 1 M hydrochloric acid to adjust the pH to 2.5.

[0035] Interfacial emulsification polymerization: at room temperature, drop the prepared oil phase mixture into the prepared emulsified phase mixture drop by drop within 15 to 20 minutes for interfacial emulsification polymerization. Magnetic stirring is carried out at a speed of 10 minutes, and the total time of the interfacial emulsification polymerization reaction is 2.5 to 3.5 hours.

[0036] Then the organic solvent is ...

specific Embodiment 2

[0037] In a kind of preparation method of n-butyl cyanoacrylate nanowire provided by this implementation:

[0038] Prepare the oil phase mixture: Disperse 10 μl of n-butyl α-cyanoacrylate and 0.15 ml of ethyl acetate in 5 ml of acetone.

[0039] Prepare the emulsified phase mixture: disperse 25 mg of emulsifier and 50 mg of stabilizer in 5 ml of pure water, the emulsifier is sodium lauryl sulfate, and the stabilizer is dextran-70; the passing concentration is 1 M hydrochloric acid to adjust the pH to 2.5.

[0040] All the other steps are the same as in Example 1.

specific Embodiment 3

[0041] In a kind of preparation method of n-butyl cyanoacrylate nanowire provided by this implementation:

[0042] Prepare the oil phase mixture: Disperse 10 μl of n-butyl α-cyanoacrylate and 0.20 ml of ethyl acetate in 5 ml of acetone.

[0043] Prepare the emulsified phase mixture: disperse 30 mg of emulsifier and 45 mg of stabilizer in 5 ml of pure water, the emulsifier is sodium lauryl sulfate, and the stabilizer is dextran-70; the passing concentration is 1 M hydrochloric acid to adjust the pH to 2.5.

[0044] All the other steps are the same as in Example 1.

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Abstract

The invention discloses a preparation method of a polybutylcyanoacrylate nanowire. The preparation method comprises the following steps of: preparing an oil-phase mixture, namely dispersing alpha-n butyl cyanoacrylate with the volume ratio of 0.2-0.3% and ethyl acetate with the volume ratio of 3-6% in acetone; preparing emulsified-phase mixture, namely dispersing a 5-8 g / L emulsifying agent and a 8-10 g / L stabilizer, wherein the emulsifying agent is sodium lauryl sulphate, and the stabilizer is dextran-70; carrying out interface emulsification polymerization reaction; and at room temperature, gradually dropwise adding the prepared oil-phase mixture into the prepared emulsified-phase mixture for carrying out interface emulsification polymerization. The preparation method disclosed by the invention has the characteristics of stable performance and no toxicity and no harm to a human body, animals and microorganisms.

Description

technical field [0001] The invention relates to a method for preparing n-butyl cyanoacrylate nanowires, belonging to the technical field of biological carrier preparation methods. Background technique [0002] In recent years, with the research and development of nanomaterials, the research and development of nanobiological materials has become a research hotspot in the field of international biotechnology. [0003] At present, the nano-biological material poly(butyl-2-cyanoacrylate), PBCA has also become a kind of biological material studied by many experts and scholars. Nanoparticles, including nanospheres and nanocapsules, are studied more. Their shapes are spherical or ellipsoidal, but the reduction of nanoparticle size will cause some problems. For example, for most nanoparticles, how to recover the sample after an experiment is a very difficult problem, because once these nanoparticles are dispersed in the solution, it is difficult to collect the nanoparticles from th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F122/32C08F2/26
CPCC08F2/26C08F122/32
Inventor 汪维云姚京京章扬新曾德成孙东东杨恩东孟伟
Owner ANHUI AGRICULTURAL UNIVERSITY
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