Water-soluble quaternary polymer molecular brush dye trapping sedimentation agent and preparation method and application thereof

A polymer and water-soluble technology, applied in water pollutants, chemical instruments and methods, water/sewage treatment, etc., can solve complex heavy metal ions, single chemical structure of polyacrylamide, and poor capture ability of dye molecules and other problems, to achieve the effect of solving the problem of complex heavy metal ions, efficient capture, and rapid sedimentation

Active Publication Date: 2018-04-10
合肥九州龙腾科技成果转化有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the chemical structure of polyacrylamide is relatively simple, and there are problems such as poor ability to capture dye molecules, slow sedimentation speed, and inability to deal with complexed heavy metal ions.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] It is a water-soluble tetrapolymer molecular brush dye capture and sedimentation agent, which is prepared by the following steps:

[0022] Step 1 Synthesis of PHEMAA polymer backbone

[0023] Take 1 part of azobisisobutyronitrile initiator, 100 parts of hydroxyethylacrylamide (HEMAA), and 400 parts of methanol, and carry out polymerization reaction at 80°C for 1 hour under the protection of nitrogen to obtain a degree of polymerization (DP) of 30 Polyhydroxyethylacrylamide (PHEMAA);

[0024] Step 2 Synthesis of cationic polymer side chain PDMC-COOH, anionic polymer side chain precursor polymer PtBMA-COOH and functional polymer side chain precursor polymer PNVF-COOH

[0025] Synthesis of cationic polymer side chain PDMC-COOH: Take 1 part of azobiscyanovaleric acid initiator, 100 parts of methacryloyloxyethyltrimethylammonium chloride (DMC) and 300 parts of water , carry out free radical polymerization at 60°C for 2 hours under the protection of nitrogen, and obtain PDM...

Embodiment 2

[0035] It is a water-soluble tetrapolymer molecular brush dye capture and sedimentation agent, which is prepared by the following steps:

[0036] Step 1 Synthesis of PHEMAA polymer backbone

[0037] Take 1 part of ethyl 2-bromoisobutyrate initiator, 1 part of CuBr and 1 part of 4,4-bipyridine (BPy), 100 parts of hydroxyethylacrylamide (HEMAA), 100 parts of methanol, in The polymerization reaction was carried out at 60°C for 5 hours under the protection of nitrogen to obtain polyhydroxyethylacrylamide (PHEMAA) with a degree of polymerization (DP) of 200;

[0038] Step 2 Synthesis of cationic polymer side chain PDMC-COOH, anionic polymer side chain precursor polymer PtBMA-COOH and functional polymer side chain precursor polymer PNVF-COOH

[0039] Synthesis of cationic polymer side chain PDMC-COOH: Take 1 part of azodicyanovaleric acid initiator, 200 parts of methacryloyloxyethyltrimethylammonium chloride (DMC) and 100 parts of water , carry out free radical polymerization at 6...

Embodiment 3

[0049] It is a water-soluble tetrapolymer molecular brush dye capture and sedimentation agent, which is prepared by the following steps:

[0050] Step 1 Synthesis of PHEMAA polymer backbone

[0051] Take 1 part of ethyl 2-bromoisobutyrate initiator, 1 part of CuBr and 1 part of 4,4-bipyridine (BPy), 400 parts of hydroxyethylacrylamide (HEMAA), 100 parts of methanol, in The polymerization reaction was carried out at 70°C for 10 hours under the protection of nitrogen to obtain polyhydroxyethylacrylamide (PHEMAA) with a degree of polymerization (DP) of 300;

[0052] Step 2 Synthesis of cationic polymer side chain PDMC-COOH, anionic polymer side chain precursor polymer PtBMA-COOH and functional polymer side chain precursor polymer PNVF-COOH

[0053] Synthesis of cationic polymer side chain PDMC-COOH: Take 1 part of azodicyanovaleric acid initiator, 300 parts of methacryloyloxyethyltrimethylammonium chloride (DMC) and 100 parts of water , under the protection of nitrogen, free ra...

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Abstract

The invention relates to a c and a preparation method thereof and applications thereof. The water-soluble quaternary polymer molecular brush dye trapping sedimentation agent is characterized by beingprepared from poly hydroxyethyl acrylamide as a polymer main chain, poly methacrylatoethyl trimethyl ammonium chloride as a cationic polymer with a side chain terminal end containing a carboxyl group,poly(tert-butylmethacrylate) as a cationic polymer side chain precursor polymer with a terminal end containing a carboxyl group, poly N-vinylformamide as a functional polymer side chain precursor polymer with a terminal end containing a carboxyl group, a dimethylformamide (DMF) solvent, a catalyst, 1-ethyl 3-(3-dimethylaminopropyl)carbodiimide iodomethane salt, potassium hydroxide, 1,2-cyclohexanediamine tetraacetic dianhydride and carbon disulfide, and can be used to treat dye wastewater and art coating wastewater discharged by the process of dye synthesis or dyeing and finishing. The water-soluble quaternary polymer molecular brush dye trapping sedimentation agent has the advantages of simple operation, low processing cost, strong adaptability, good trapping ability, quick sedimentationspeed, capability to treat complexed heavy metal ions and capture cationic dyes, anionic dyes, and the complexed heavy metal ions in a few seconds.

Description

technical field [0001] The invention belongs to the field of water treatment technology and polymer functional materials, and in particular relates to a quaternary polymer molecular brush dye capture and sedimentation agent, a preparation method and application thereof. It is mainly used in dye wastewater and art paint wastewater discharged during dye synthesis or dyeing and finishing, and can simultaneously remove cationic dyes, anionic dyes and complexed heavy metal ions in dye wastewater. Background technique [0002] In recent years, my country's annual sewage discharge has reached more than 39 billion tons, of which industrial sewage accounts for 51%, while dye wastewater accounts for 35% of the total industrial wastewater discharge, and it is increasing at a rate of 1% year by year. Dye wastewater mainly comes from dye synthesis and dye use enterprises, and is composed of dyes and auxiliaries discharged during the synthesis or dyeing and finishing process. With the ra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/52C02F1/56C02F1/66C08G81/02C02F101/20C02F101/30
CPCC02F1/5236C02F1/56C02F1/66C02F2101/20C02F2101/308C08G81/021
Inventor 刘锋陈燕舞霍应鹏洪丹张浥琨郭志杰刘祥军唐秋实彭琦
Owner 合肥九州龙腾科技成果转化有限公司
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