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Rodanine derivative oligomer and preparation method and application thereof

A technology of derivatives and oligomers, applied in the field of rhodanine derivatives and oligomers and its preparation, can solve the problems of cumbersome synthesis steps, low adsorption capacity, and few effective sites

Inactive Publication Date: 2018-11-23
NANCHANG HANGKONG UNIVERSITY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

For ion-imprinted compounds, although they have high selectivity, the adsorption capacity is generally not high due to the cumbersome synthesis steps and fewer effective sites. Although other materials such as activated carbon and chitosan have high adsorption capacity, However, due to the lack of selectivity, most of the metal ions are adsorbed in the multi-ion system wastewater, so it cannot be applied to the targeted recovery of silver.

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  • Rodanine derivative oligomer and preparation method and application thereof
  • Rodanine derivative oligomer and preparation method and application thereof
  • Rodanine derivative oligomer and preparation method and application thereof

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preparation example Construction

[0020] The invention provides a kind of preparation method of rhodanine derivative oligomer, comprises the steps:

[0021] (1) Under the condition of nitrogen or inert gas protection, rhodanine derivative monomer, photoinitiator, alcohol solvent and water are mixed to obtain a raw material mixture; the rhodanine derivative monomer is 3-allyl Rhodanine or 3-butenylrhodanine;

[0022] (2) Maintain the atmosphere protected by nitrogen or inert gas, and carry out the polymerization reaction under the condition of ultraviolet irradiation to obtain the rhodanine derivative oligomer.

[0023] In the invention, under the protection condition of nitrogen or inert gas, the rhodanine derivative monomer, photoinitiator, alcohol solvent and water are mixed to obtain the raw material mixture.

[0024] In the present invention, there is no special limitation on the mixing sequence of the rhodanine derivative monomer, photoinitiator, alcohol solvent and water, and any mixing sequence may be ...

Embodiment 1

[0058] (1) At room temperature, add 30mL methanol to a 100mL quartz flask, vacuumize to -0.08MPa, feed nitrogen, add 0.844g 3-allyl rhodanine under stirring, after dissolving completely, get 3- Allyl rhodanine solution;

[0059] (2) Add 0.0844g photoinitiator 2959 rapidly to the 3-allyl rhodanine solution that described step (1) obtains under light-shielding conditions, evacuate to-0.08MPa, feed into nitrogen then, stir 10 ~ 15min to dissolve;

[0060] (3) Slowly add 30mL of deionized water to the mixed solution obtained in the step (2) under the protection of light and nitrogen, vacuumize to -0.08MPa, then feed nitrogen, and stir evenly;

[0061] (4) Adopting an ultraviolet lamp to irradiate the flask vertically, the ultraviolet wavelength emitted by the ultraviolet lamp is 354nm, the vertical distance between the ultraviolet lamp and the solution is maintained at 5cm, and the mixed solution obtained from the step (3) is irradiated under closed conditions, and the polymeriza...

Embodiment 2

[0066] (1) At room temperature, add 30mL methanol to a 100mL quartz flask, vacuumize to -0.09MPa, feed nitrogen, add 0.844g 3-allyl rhodanine under stirring, and dissolve completely to obtain 3- Allyl rhodanine solution;

[0067] (2) Rapidly add 0.0844g of photoinitiator 184 to the (1) 3-allyl rhodanine solution under light-shielding conditions, evacuate to -0.09MPa, then feed nitrogen gas, stir for 10-15min to dissolve;

[0068] (3) Slowly add 30mL of deionized water to the mixed solution obtained in the step (2) under the protection of nitrogen and avoid light, vacuumize to -0.09MPa, then feed nitrogen, and stir evenly;

[0069] (4) Adopting an ultraviolet lamp to irradiate the flask vertically, the ultraviolet wavelength emitted by the ultraviolet lamp is 354nm, the vertical distance between the ultraviolet lamp and the solution is maintained at 5cm, and the mixed solution obtained from the step (3) is irradiated under closed conditions, and the polymerization reaction is 5...

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Abstract

The invention provides a preparation method of a rodanine derivative oligomer. The preparation method comprises the following steps of under the condition of nitrogen or inert gas protection, mixing arodanine derivative monomer, a photoinitiator, an alcohol solvent and water, so as to obtain the raw material mixture, wherein the rodanine derivative monomer is 3-allyl rodanine or 3-butenyl rodanine; then, maintaining the atmosphere of the nitrogen or inert gas protection, and radiating by ultraviolet rays to generate the polymerizing reaction, so as to obtain the rodanine derivative oligomer.The rodanine derivative oligomer prepared by the preparation method has the advantages that the selective adsorption property is realized on Ag+ in a mixed solution with concentrations of Ag+, Co2+, Ni2+, Pb2+ and Cu2+ respectively reaching 300mg / L; the adsorption amount of Ag can reach 263.5mg / g in the mixed solution, and the maximum adsorption amount of other heavy metal ions is only 17.5mg / g; while the Ag+ is selectively adsorbed, the higher adsorption amount is realized.

Description

technical field [0001] The invention relates to the technical field of adsorption materials, in particular to a rhodanine derivative oligomer and its preparation method and application. Background technique [0002] Silver is a silvery-white transition metal. It is very ductile and has the highest electrical and thermal conductivity of all metals. Silver is often used to make highly sensitive physical instrument components. Electronic appliances are the industry with the largest amount of silver, and its use is divided into electrical contact materials, composite materials and welding materials. Among silver compounds, silver halide photosensitive materials are one of the fields with the largest amount of silver. At present, the photosensitive materials with the largest production and sales volume are photographic film, photographic paper, X-ray film, fluorescent information recording sheet, and electron microscope photography. Film and printing film, etc. In addition, th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/26B01J20/30C22B11/00C22B7/00
CPCB01J20/262C22B7/006C22B11/042Y02P10/20
Inventor 罗旭彪邓慧
Owner NANCHANG HANGKONG UNIVERSITY