Fully organic CO2 absorbent obtained by a Schiff base reaction between branched poly(ethyleneimine) and glutaraldehyde

Ki Seob Hwang; Hee Young Park; Jung Hyun Kim; Jun Young Lee

doi:10.1007/s11814-017-0330-8

Fully organic CO₂ absorbent obtained by a Schiff base reaction between branched poly(ethyleneimine) and glutaraldehyde

Ki Seob Hwang, Hee Young Park, Jung Hyun Kim, Jun Young Lee

Department of Chemical and Biomolecular Engineering

Research output: Contribution to journal › Article › peer-review

20 Citations (Scopus)

Abstract

We used a water-in-oil emulsification method to prepare particulate CO₂ absorbents from branched poly(ethyleneimine) (PEI), utilizing ¹³C nuclear magnetic resonance spectroscopy to determine the amount of free PEI NH₂ groups and thus calculate the required cross-linker amount. The functional groups and reactivity of branched PEI particles were characterized by Fourier transform infrared spectroscopy, and their CO₂ absorption capacity was determined by thermogravimetric analysis. Dynamic light scattering measurements showed that the synthesized particles exhibited sizes of 0.2-2 μm and high surface areas, which resulted in high CO₂ absorption capacities of up to 2.18 mmol CO₂ per gram sorbent at 75 °C.

Original language	English
Pages (from-to)	798-804
Number of pages	7
Journal	Korean Journal of Chemical Engineering
Volume	35
Issue number	3
DOIs	https://doi.org/10.1007/s11814-017-0330-8
Publication status	Published - 2018 Mar 1

Bibliographical note

Publisher Copyright:
© 2018, Korean Institute of Chemical Engineers, Seoul, Korea.

All Science Journal Classification (ASJC) codes

General Chemistry
General Chemical Engineering

Access to Document

10.1007/s11814-017-0330-8

Cite this

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title = "Fully organic CO2 absorbent obtained by a Schiff base reaction between branched poly(ethyleneimine) and glutaraldehyde",

abstract = "We used a water-in-oil emulsification method to prepare particulate CO2 absorbents from branched poly(ethyleneimine) (PEI), utilizing 13C nuclear magnetic resonance spectroscopy to determine the amount of free PEI NH2 groups and thus calculate the required cross-linker amount. The functional groups and reactivity of branched PEI particles were characterized by Fourier transform infrared spectroscopy, and their CO2 absorption capacity was determined by thermogravimetric analysis. Dynamic light scattering measurements showed that the synthesized particles exhibited sizes of 0.2-2 μm and high surface areas, which resulted in high CO2 absorption capacities of up to 2.18 mmol CO2 per gram sorbent at 75 °C.",

keywords = "Carbon Dioxide Absorbent, Organic Particle, Primary Amine, Schiff Base Reaction, Surface Area",

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AU - Hwang, Ki Seob

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AU - Kim, Jung Hyun

AU - Lee, Jun Young

PY - 2018/3/1

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AB - We used a water-in-oil emulsification method to prepare particulate CO2 absorbents from branched poly(ethyleneimine) (PEI), utilizing 13C nuclear magnetic resonance spectroscopy to determine the amount of free PEI NH2 groups and thus calculate the required cross-linker amount. The functional groups and reactivity of branched PEI particles were characterized by Fourier transform infrared spectroscopy, and their CO2 absorption capacity was determined by thermogravimetric analysis. Dynamic light scattering measurements showed that the synthesized particles exhibited sizes of 0.2-2 μm and high surface areas, which resulted in high CO2 absorption capacities of up to 2.18 mmol CO2 per gram sorbent at 75 °C.

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