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A kind of preparation method of acrylic polymer with fluorescent properties

A technology with acrylic and fluorescent properties, which is applied in the preparation of sulfonate, chemical instruments and methods, organic chemistry, etc. It can solve the problems of poor fluorescence stability, poor comprehensive dispersion and scale inhibition performance, and weak anti-interference ability, etc., to achieve scale inhibition Excellent performance, improved non-phosphating corrosion and scale inhibition, and low manufacturing cost

Active Publication Date: 2015-09-23
CHINA NAT OFFSHORE OIL CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the currently existing acrylic polymers with fluorescent properties have the disadvantages of poor comprehensive dispersion and scale inhibition performance, poor fluorescence stability, and weak anti-interference ability.

Method used

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  • A kind of preparation method of acrylic polymer with fluorescent properties
  • A kind of preparation method of acrylic polymer with fluorescent properties

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Dissolve 1.0 g of potassium 2-allyloxynaphthalene-6,8-disulfonate and 50.0 g of acrylic acid in 25 g of dimethylformamide, and dissolve 15.0 mg of ammonium persulfate and 7.5 mg of sodium sulfite in 20 g of deionized water Add 72 grams of deionized water into a 250ml four-necked bottle equipped with a stirrer, a condenser tube and a thermometer, stir evenly, ventilate nitrogen, control the reaction temperature to be 90°C, and obtain a kind of acrylic polymer with fluorescent properties after being kept warm for 4 hours. things. It has been determined that the maximum fluorescence excitation wavelength is λex=239nm, and the maximum emission wavelength is λem=355nm.

Embodiment 2

[0027] Dissolve 0.75 g of potassium 2-allyloxynaphthalene-6,8-disulfonate and 50.0 g of acrylic acid in 35 g of ethylene glycol methyl ether; dissolve 15.0 mg of ammonium persulfate and 7.5 mg of sodium sulfite in 20 g of deionized water Add 62 grams of deionized water into a 250ml four-necked bottle equipped with a stirrer, a condenser tube and a thermometer, stir evenly, ventilate nitrogen, control the reaction temperature to be 100°C, and obtain a kind of acrylic polymer with fluorescent properties after being incubated for 6 hours. things. It has been determined that the maximum fluorescence excitation wavelength is λex=239nm, and the maximum emission wavelength is λem=355nm.

Embodiment 3

[0029] Dissolve 0.5 g of potassium 2-allyloxynaphthalene-6,8-disulfonate and 50.0 g of acrylic acid in 40 g of diethylene glycol butyl ether; dissolve 15.0 mg of ammonium persulfate and 7.5 mg of Sodium sulfite: Add 57 grams of deionized water into a 250ml four-necked bottle equipped with a stirrer, a condenser and a thermometer, stir evenly, pass nitrogen, control the reaction temperature at 120°C, and obtain a kind of acrylic acid with fluorescent properties after 8 hours of heat preservation. polymer. It has been determined that the maximum fluorescence excitation wavelength is λex=239nm, and the maximum emission wavelength is λem=355nm.

[0030] Fluorescence performance evaluation

[0031] Use Hitachi F-7000 fluorescence spectrophotometer to carry out 3-D scanning to the acrylic polymer with fluorescence characteristic prepared in embodiment 1-3, can obtain the maximum excitation wavelength λex=239nm of this polymer, the maximum emission wavelength is λem= 355nm.

[003...

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Abstract

The invention discloses a preparation method of an acrylic polymer with fluorescence characteristic. The preparation method comprises the following steps of: uniformly mixing a monomer (2- allyloxynaphthalene-6, 8-disulfonic acid), another monomer (acrylic acid), a solvent and ammonium persulfate serving as an initiator in a reaction container, and reacting for 4-8 hours under the ordinary pressure condition in the presence of inert gas at 80-120 DEG C to obtain the acrylic polymer with fluorescence characteristic, wherein the solvent is selected from dimethyl formamide and alcohol ether; the mass ratio of the 2-allyloxynaphthalene-6, 8-disulfonic acid to the acrylic acid to the solvent to the initiator is (0.1%-0.2%): 1: (50%-80%): (0.01%-0.06%); and the viscosity average molecular weigh of the acrylic polymer with fluorescence characteristic is 3000-6000, the maximum fluorescence excitation wavelength lambda ex of the acrylic polymer is 239nm, and the maximum emission wavelength lambda em of the acrylic polymer is 355nm. The acrylic polymer with fluorescence characteristic, prepared by the method, has the characteristics of good fluorescence stability, strong anti-jamming capability, excellent scale inhibition and the like and can be used for scale inhibition, dispersion and automatic fluorescence detection of industrial cooling and circulating water treatment systems.

Description

technical field [0001] The invention belongs to the technical field of circulating cooling water treatment, and in particular relates to a preparation method of an acrylic polymer with fluorescent properties. Background technique [0002] Phosphorus-based formulations are usually used in industrial circulating water, that is to say, each scale and corrosion inhibitor formula contains organic phosphorus chemicals, such as hydroxyethylidene diphosphonic acid (HEDP), aminotrimethylene phosphonic acid (ATMP ), 2-phosphonobutane-1.2.4-trihydroxy acid (PBTC), ethylenediaminetetramethylenephosphonic acid (EDTMP), etc. Engineers and technicians use phosphomolybdenum blue spectrophotometry to measure the phosphorus content in circulating water to adjust the dosage and control the water quality. At present, most manufacturers in China still use this traditional analysis method for testing. Because the analysis of total phosphorus in phosphorus-based formulations is cumbersome and lag...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F220/06C08F216/14C07C303/32C07C309/43C02F5/10
Inventor 郑书忠周伟生于瑞香滕厚开孟祥艳衣龙欣吴新国王冀生
Owner CHINA NAT OFFSHORE OIL CORP