Effect of amino acids in polymer/silver salt complex membranes on facilitated olefin transport

Sang Wook Kang; Jong Hak Kim; Jongok Won; Kookheon Char; Yong Soo Kang

doi:10.1016/j.memsci.2004.08.028

Effect of amino acids in polymer/silver salt complex membranes on facilitated olefin transport

Sang Wook Kang, Jong Hak Kim, Jongok Won, Kookheon Char, Yong Soo Kang

Department of Chemical and Biomolecular Engineering

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

25 Citations (Scopus)

Abstract

The effect of amino acids such as asparagine, valine, glutamic acid and glycine on silver ion activity as a olefin carrier in membrane consisting of silver ions dissolved in poly(2-ethyl-2-oxazoline) (POZ) has been investigated. The presence of amino acids leads to the weakened interaction of the silver ion with its counteranion resulting from the electrostatic interaction between counteranion and NH₃⁺ of amino acids, as confirmed by FT-IR spectra. As a result, the mixed gas permeances and selectivities of propylene/propane through POZ/AgBF₄ or POZ/AgNO₃ membranes intriguingly increased upon addition of the amino acids. However, the improvement of separation performance is strongly dependent on the type and the concentration of amino acids. Among the amino acids tested, the presence of asparagine containing amide group was found to improve the separation performance of the membranes most significantly. On the other hand, the performance of membrane with lysine containing amine group was the lowest, indicating the amine is not the effective ligand for silver ion in facilitated olefin transport membranes.

Original language	English
Pages (from-to)	201-206
Number of pages	6
Journal	Journal of Membrane Science
Volume	248
Issue number	1-2
DOIs	https://doi.org/10.1016/j.memsci.2004.08.028
Publication status	Published - 2005 Feb 15

Bibliographical note

Funding Information:
The authors acknowledge the financial support from the Ministry of Science and Technology of Korea through the Creative Research Initiatives Program. Kookheon Char also acknowledges the financial support from the National Research Laboratory Program (Grant M1-0104-00-0191) and the Ministry of Education through the Brain Korea 21 Program of Seoul National University.

All Science Journal Classification (ASJC) codes

Biochemistry
Materials Science(all)
Physical and Theoretical Chemistry
Filtration and Separation

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10.1016/j.memsci.2004.08.028

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title = "Effect of amino acids in polymer/silver salt complex membranes on facilitated olefin transport",

abstract = "The effect of amino acids such as asparagine, valine, glutamic acid and glycine on silver ion activity as a olefin carrier in membrane consisting of silver ions dissolved in poly(2-ethyl-2-oxazoline) (POZ) has been investigated. The presence of amino acids leads to the weakened interaction of the silver ion with its counteranion resulting from the electrostatic interaction between counteranion and NH3+ of amino acids, as confirmed by FT-IR spectra. As a result, the mixed gas permeances and selectivities of propylene/propane through POZ/AgBF4 or POZ/AgNO3 membranes intriguingly increased upon addition of the amino acids. However, the improvement of separation performance is strongly dependent on the type and the concentration of amino acids. Among the amino acids tested, the presence of asparagine containing amide group was found to improve the separation performance of the membranes most significantly. On the other hand, the performance of membrane with lysine containing amine group was the lowest, indicating the amine is not the effective ligand for silver ion in facilitated olefin transport membranes.",

author = "Kang, {Sang Wook} and Kim, {Jong Hak} and Jongok Won and Kookheon Char and Kang, {Yong Soo}",

note = "Funding Information: The authors acknowledge the financial support from the Ministry of Science and Technology of Korea through the Creative Research Initiatives Program. Kookheon Char also acknowledges the financial support from the National Research Laboratory Program (Grant M1-0104-00-0191) and the Ministry of Education through the Brain Korea 21 Program of Seoul National University.",

year = "2005",

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doi = "10.1016/j.memsci.2004.08.028",

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AU - Kang, Sang Wook

AU - Kim, Jong Hak

AU - Won, Jongok

AU - Char, Kookheon

AU - Kang, Yong Soo

N1 - Funding Information: The authors acknowledge the financial support from the Ministry of Science and Technology of Korea through the Creative Research Initiatives Program. Kookheon Char also acknowledges the financial support from the National Research Laboratory Program (Grant M1-0104-00-0191) and the Ministry of Education through the Brain Korea 21 Program of Seoul National University.

PY - 2005/2/15

Y1 - 2005/2/15

N2 - The effect of amino acids such as asparagine, valine, glutamic acid and glycine on silver ion activity as a olefin carrier in membrane consisting of silver ions dissolved in poly(2-ethyl-2-oxazoline) (POZ) has been investigated. The presence of amino acids leads to the weakened interaction of the silver ion with its counteranion resulting from the electrostatic interaction between counteranion and NH3+ of amino acids, as confirmed by FT-IR spectra. As a result, the mixed gas permeances and selectivities of propylene/propane through POZ/AgBF4 or POZ/AgNO3 membranes intriguingly increased upon addition of the amino acids. However, the improvement of separation performance is strongly dependent on the type and the concentration of amino acids. Among the amino acids tested, the presence of asparagine containing amide group was found to improve the separation performance of the membranes most significantly. On the other hand, the performance of membrane with lysine containing amine group was the lowest, indicating the amine is not the effective ligand for silver ion in facilitated olefin transport membranes.

AB - The effect of amino acids such as asparagine, valine, glutamic acid and glycine on silver ion activity as a olefin carrier in membrane consisting of silver ions dissolved in poly(2-ethyl-2-oxazoline) (POZ) has been investigated. The presence of amino acids leads to the weakened interaction of the silver ion with its counteranion resulting from the electrostatic interaction between counteranion and NH3+ of amino acids, as confirmed by FT-IR spectra. As a result, the mixed gas permeances and selectivities of propylene/propane through POZ/AgBF4 or POZ/AgNO3 membranes intriguingly increased upon addition of the amino acids. However, the improvement of separation performance is strongly dependent on the type and the concentration of amino acids. Among the amino acids tested, the presence of asparagine containing amide group was found to improve the separation performance of the membranes most significantly. On the other hand, the performance of membrane with lysine containing amine group was the lowest, indicating the amine is not the effective ligand for silver ion in facilitated olefin transport membranes.

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Effect of amino acids in polymer/silver salt complex membranes on facilitated olefin transport

Abstract

Bibliographical note

All Science Journal Classification (ASJC) codes

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