Method for synthesizing polypyrrole in oil solvent
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A technology of oily solvent and polypyrrole, which is applied in the field of preparing polypyrrole by chemical oxidation method, can solve the problems of long time consumption and low yield of polypyrrole, and achieve the effect of convenient preparation process, high yield and high reaction rate
Active Publication Date: 2016-05-04
YANGZHOU UNIV
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The polypyrrole synthesized by this method takes a long time, and the yield is relatively low, and large-scale industrial production has certain limitations.
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[0029] Preparation of reaction solution; sodium lauryl sulfate, polyethylene glycol 6000, polyvinylpyrrolidone, ethanol, a small amount of butanol, peracetic acid, benzoyl peroxide, pyrrole monomer, and chloroform (isopropanol , cyclohexane, acetone, toluene, etc.).
[0030] Treatment of reactive monomers: avoid light, store at low temperature (3°C), and keep away from strong acids, strong alkalis, and strong oxidants.
[0031] Preparation of peracetic acid; the content of peracetic acid was prepared at 40%.
[0032] In the present invention, the optimum formula is obtained by changing and dropping different amounts of additives, keeping the reaction conditions constant, and conducting a comparative test.
[0033] 1. Weigh each raw material according to the following schemes;
Embodiment 1
[0034]Embodiment 1: 0.20% sodium lauryl sulfate, 0.35% polyethylene glycol 6000, 0.10% polyvinylpyrrolidone, 0.15% ethanol, 0.07% butanol, the amount of peracetic acid added to make the pH 2-3, 5.0 % benzoyl peroxide, 2.5% pyrrole monomer, and the rest are chloroform (isopropanol, cyclohexane, acetone, toluene, etc.), totaling 100%.
Embodiment 2
[0035] Embodiment 2: 0.25% sodium lauryl sulfate, 0.30% polyethylene glycol 2000, 0.14% polyvinylpyrrolidone, 0.13% ethanol, 0.05% butanol, the amount of peracetic acid added to make the pH be 2-3, 5.5 % benzoyl peroxide, 3% pyrrole monomer, and the rest are chloroform (isopropanol, cyclohexane, acetone, toluene, etc.), totaling 100%.
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Abstract
The invention relates to a method for synthesizing polypyrrole in an oil solvent. The method comprises the following steps: sodium dodecyl sulfate, polyethylene glycol 6000, polyvinyl pyrrolidone, ethanol, butanol, peracetic acid, benzoyl peroxide, pyrrole monomer and the oil solvent are fully stirred under the condition of the room temperature or ice bath; the mixture is then subjected to ultrasonic, washing and drying, and a black polypyrrole product is obtained. According to the method, benzoyl peroxide is used as strong oxidant, and trichloromethane (isopropanol, cyclohexane, acetone, methylbenzene and the like) is used as the oil solvent. Therefore, polypyrrole polymers with the advantages of high purity, large yield, good stability, fast reaction, mild reaction conditions, high temperature resistance, good anti-pressure capacity, low cost input and the like can be prepared.
Description
technical field [0001] The invention belongs to the technical fields of material, chemical industry, biology, ion detection, metal anticorrosion, etc., especially in the aspect of preparing polypyrrole by chemical oxidation method. Background technique [0002] Polypyrrole is a black powdery solid or black film-like solid. The difference in its appearance depends mainly on the different synthesis methods. Polypyrrole synthesized by chemical oxidation is mostly in powder form, while polypyrrole synthesized by electrochemical method is mostly thin film. Polypyrrole is insoluble in water and in most organic solvents. In today's society, energy resources are scarce, resource utilization is low, and waste is large. Synthesizing new polymer materials is becoming increasingly important to the development of society. Research on polymer materials Once became a hot spot of social attention, articles and patents on polymer materials also emerged in an endless stream. In the research o...
Claims
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