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

Amine-terminated hyperbranched polymer solid amine adsorption material as well as preparation method and application thereof

A technology of amino-terminated hyperbranched and hyperbranched polymers, applied in chemical instruments and methods, separation methods, and other chemical processes, can solve the problems of insufficient adsorption capacity of solid amine materials, and achieve wide molecular mass distribution and high adsorption capacity , The effect of simple synthesis method

Active Publication Date: 2015-09-23
SUN YAT SEN UNIV
View PDF4 Cites 21 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to overcome the defects and technical deficiencies of the insufficient adsorption capacity of existing solid amine materials, and to provide a reproducible and environmentally friendly high alkyl group with strong adsorption capacity for acid gas, large adsorption capacity, and good regeneration performance. Ammonium-terminated hyperbranched polymer solid-state amine adsorbents with ammonia density

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] 1. Preparation

[0040] (1) At 0°C, ethylenediamine and acrylamide were mixed uniformly in a methanol solution at a molar ratio of 1:1, and Michael addition reaction was performed for 4 hours to obtain a hyperbranched polymer precursor.

[0041] (2) Transfer the obtained precursor to an eggplant-shaped bottle of a rotary evaporator, and perform a temperature-programmed reaction under the conditions of evacuation by a circulating water vacuum pump, reflux condensation, and high-speed rotation: 60°C for 1h, 100°C for 2h, 120°C ℃ for 2 hours and 140 ℃ for 2 hours to prepare the amino-terminated hyperbranched polymer.

[0042] (3) Dissolve the amino-terminated hyperbranched polymer in water and prepare 100mL of a 5wt% aqueous solution; under stirring conditions, slowly add 0.1wt% crosslinking agent glyoxal, crosslinking reaction for 5min, and bake at 60°C dry to obtain the amino-terminated hyperbranched polymer solid amine material.

[0043] (4) Soak 5g of amino-terminate...

Embodiment 2

[0046] 1. Preparation

[0047] (1) Diethylenetriamine and methyl acrylate were mixed uniformly in a methanol solution at a molar ratio of 1:1 at 25°C, and Michael addition reaction was performed for 24 hours to obtain a hyperbranched polymer precursor.

[0048] (2) Transfer the obtained precursor to an eggplant-shaped bottle of a rotary evaporator, and perform a temperature-programmed reaction under the conditions of evacuation by a circulating water vacuum pump, reflux condensation, and high-speed rotation: 60°C for 1h, 100°C for 2h, 120°C ℃ for 2 hours and 140 ℃ for 2 hours to prepare the amino-terminated hyperbranched polymer.

[0049] (3) Dissolve the amino-terminated hyperbranched polymer in ethanol and prepare 100mL of a 40wt% solution; under stirring conditions, slowly add 5wt% of the crosslinking agent glutaraldehyde, crosslinking reaction for 20min, and bake at 60°C dry to obtain the amino-terminated hyperbranched polymer solid amine material.

[0050] (4) Soak 5g o...

Embodiment 3

[0053] 1. Preparation

[0054] (1) At 15°C, triethylenetetramine and methyl methacrylate were mixed uniformly in a methanol solution at a molar ratio of 1:1, and Michael addition reaction was performed for 16 hours to obtain a hyperbranched polymer precursor.

[0055] (2) Transfer the obtained precursor to an eggplant-shaped bottle of a rotary evaporator, and perform a temperature-programmed reaction under the conditions of evacuation by a circulating water vacuum pump, reflux condensation, and high-speed rotation: 60°C for 1h, 100°C for 2h, 120°C ℃ for 2 hours and 140 ℃ for 2 hours to prepare the amino-terminated hyperbranched polymer.

[0056] (3) Dissolve the amino-terminated hyperbranched polymer in methanol and prepare 100mL of a 20wt% solution; under stirring conditions, slowly add 3wt% cross-linking agent phthalic anhydride, cross-linking reaction 10min, 60 ℃ drying to prepare the amino-terminated hyperbranched polymer solid amine material.

[0057] (4) Soak 5g of ami...

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

No PUM Login to View More

Abstract

The invention discloses an amine-terminated hyperbranched polymer solid amine adsorption material as well as a preparation method and application thereof. The preparation method comprises the following steps: carrying out a Michael addition reaction between an amination reagent and an unsaturated monomer, so as to generate a hyperbranched polymer precursor; realizing polycondensation reactive synthesis in programmed temperature, so as to obtain an amine-terminated hyperbranched polymer; carrying out cross-linking and solidifying; reducing amide groups and imine groups so as to obtain the solid amine adsorption material. The solid amine adsorption material prepared according to the method has high alkyl amine density, has not only very high adsorption capacities for acid gases such as CO2, SO2 and H2S, but also excellent adsorptive regeneration performance, is high in heat stability and chemical stability, and high in adsorption capacity even after multiple regeneration, and can be used in the fields of acid gas adsorption trapping and environmental management, and the field of CO2 removing in a closed system.

Description

technical field [0001] The invention belongs to the technical field of adsorption materials, and more specifically relates to an amino-terminated hyperbranched polymer solid amine adsorption material and its preparation method and application. Background technique [0002] Atmospheric CO 2 The increase of the concentration leads to the intensification of the greenhouse effect, which has become one of the world's largest energy and environmental problems. 2 The separation and enrichment is to reduce CO 2 emissions, the most direct means to slow down the greenhouse effect. CO 2 The removal of air is a key technology for environmental control and life support systems in closed systems such as submarines, isolated civil air defenses in wartime, national defense underground fortifications, and space workstations. The core of its technology is adsorption materials. CO 2 The structural design and performance regulation of adsorbent materials, especially to increase the adsorpt...

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
IPC IPC(8): B01J20/26B01J20/30B01D53/02
CPCY02C20/40
Inventor 陈水挟何辉
Owner SUN YAT SEN 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