Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

High polymer with N-dicarboxyl in side chains and application thereof

A double carboxyl group and polymer technology, which is applied in other chemical processes, chemical instruments and methods, etc., can solve the problems that chemical treatment methods cannot meet the needs, and achieve fast adsorption speed, convenient post-treatment, and good thermal stability.

Active Publication Date: 2014-04-16
SUZHOU UNIV
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Due to the continuous improvement of sewage discharge limits and the continuous reduction of total discharge, the existing chemical treatment methods cannot meet the demand. Therefore, the treatment of wastewater containing heavy metal ions has become a difficult problem in the current water treatment industry.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • High polymer with N-dicarboxyl in side chains and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Example 1: laboratory preparation of polymer resin with N-biscarboxyl groups in the side chain

[0025] 100g of disodium iminodiacetate (IDA) was dissolved in 220g of water, and after complete dissolution, 50g of glycidyl methacrylate (GMA) was slowly added to react for 0.5h at a reaction temperature of 80°C. Add 20g of cross-linking agent N, N'-methylenebisacrylamide (MBA) and continue to stir until completely dissolved, keep the reaction temperature at 80°C, lower the temperature to 55°C appropriately, and use potassium persulfate / sodium bisulfite initiator ( Mass ratio 1:1, concentration 1%), polymerize to obtain the target polymer, and the polymerization yield is 99%.

[0026] The target polymer cannot be dissolved in water and common organic solvents (acetone, ethanol, toluene, benzene, methylene chloride, DMF, etc.).

[0027] The target polymer is analyzed by infrared spectroscopy and thermogravimetric analysis. The results of infrared spectroscopy show that the ...

Embodiment 2

[0035] Example 2: laboratory preparation of polymer resin with N-biscarboxyl groups in the side chain

[0036] 100g of disodium iminodiacetate (IDA) was dissolved in 220g of water, and after complete dissolution, 50g of glycidyl methacrylate (GMA) was slowly added to react for 0.5h at a reaction temperature of 80°C. Add 25g of cross-linking agent N, N'-methylenebisacrylamide (MBA) and continue to stir until it is completely dissolved, keep the reaction temperature at 80°C, lower the temperature to 55°C appropriately, and use potassium persulfate / sodium bisulfite initiator ( Mass ratio 1:1, concentration 1%), polymerize to obtain the target polymer, and the polymerization yield is 99%.

[0037] The target polymer cannot be dissolved in water and common organic solvents (acetone, ethanol, toluene, benzene, methylene chloride, DMF, etc.).

[0038]The target polymer is analyzed by infrared spectrum and thermogravimetric analysis. The infrared spectrum shows that the carboxylate a...

Embodiment 3

[0042] Example 3: laboratory preparation of polymer resins with N-dicarboxylates in side chains

[0043] 100g of disodium iminodiacetate (IDA) was dissolved in 220g of water, and after complete dissolution, 50g of glycidyl methacrylate (GMA) was slowly added to react for 0.5h at a reaction temperature of 80°C. Add 18g of cross-linking agent N, N'-methylenebisacrylamide (MBA) and continue to stir until completely dissolved, keep the reaction temperature at 80°C, lower the temperature to 55°C appropriately, and use potassium persulfate / sodium bisulfite initiator ( Mass ratio 1:1, concentration 1%), polymerize to obtain the target polymer, and the polymerization yield is 99%.

[0044] The target polymer cannot be dissolved in water and common organic solvents (acetone, ethanol, toluene, benzene, methylene chloride, DMF, etc.).

[0045] The target polymer is analyzed by infrared spectrum and thermogravimetric analysis. The infrared spectrum shows that the carboxylate anion vibrat...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
particle diameteraaaaaaaaaa
decomposition temperatureaaaaaaaaaa
glass transition temperatureaaaaaaaaaa
Login to View More

Abstract

The invention belongs to a heavy metal ion adsorption resin and particularly relates to a high polymer with N-dicarboxyl in side chains and an application thereof used as the heavy metal ion adsorption resin. The preparation method of the high polymer with N-dicarboxyl in the side chains comprises the following steps: (1) using disodium iminodiacetate and glycidyl methacrylate as the reactants to prepare a product; and (2) using the product as the monomer, N,N'-methylenebisacrylamide (MBA) as the crosslinking agent and potassium persulfate / sodium bisulfite as the initiator to prepare a crosslinking compound, namely the high polymer with N-dicarboxyl in the side chains. The high polymer with N-dicarboxyl in the side chains, which is used as the heavy metal ion adsorbent, has the advantages of adsorption selectivity, high adsorption speed, high adsorption capacity, simplicity and convenience in desorption, good thermal stability and the like.

Description

technical field [0001] The invention belongs to heavy metal ion adsorption resin, in particular to a polymer with N-dicarboxyl group in side chain and its application as heavy metal ion adsorption resin. Background technique [0002] Due to the continuous improvement of sewage discharge limits and the continuous reduction of total discharge, the existing chemical treatment methods cannot meet the demand. Therefore, the treatment of wastewater containing heavy metal ions has become a difficult problem in the current water treatment industry. [0003] For example, the discharge standards for electroplating wastewater in the Taihu Lake Basin are: [0004] heavy metal ion Before 2008 (ppm) After 2008 (ppm) Pb 1.0 0.1 Cu 1.0 0.3 Cd 0.1 0.01 [0005] The adsorption capacity of existing commercial adsorbents / ion exchange resins to Cu(II) is shown in the following table (see literature: D.W.O'Connell ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C08F222/22C08F222/38B01J20/30B01J20/26
Inventor 路建美蒋军徐庆锋
Owner SUZHOU UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com