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Open AccessArticle

Correlation between Functional Group and Formation of Nanoparticles in PEBAX/Ag Salt/Al Salt Complexes for Olefin Separation

1
Department of Chemistry, Sangmyung University, Seoul 03016, Korea
2
Department of Energy Systems Engineering, Soonchunhyang University, Asan 31538, Korea
3
Department of Chemistry and Energy Engineering, Sangmyung University, Seoul 03016, Korea
*
Authors to whom correspondence should be addressed.
Polymers 2020, 12(3), 667; https://doi.org/10.3390/polym12030667
Received: 12 February 2020 / Revised: 5 March 2020 / Accepted: 7 March 2020 / Published: 17 March 2020
(This article belongs to the Section Polymer Applications)
poly ether-block-amide (PEBAX)-2533/metal salt/Al salt membranes were prepared for mixed olefin/paraffin separation. PEBAX-2533 with 80% ether group and 20% amide group was suggested as the polymer matrix for comparison of separation performance according to the functional group ratio in copolymer PEBAX. In addition, Al salts were used to stabilize metal ions for a long time as additives. High permeance was expected with the proportion of high ether groups, since these functional groups provided relatively permeable regions. As a result, the PEBAX-2533 composite membrane showed a selectivity of 5 (propylene/propane) with 10 GPU. However, the permeance of membrane was not unexpectedly improved and the selectivity was reduced. The result was analyzed by using SEM, RAMAN and thermogravimetric analysis (TGA), including Fourier transform infrared (FTIR). The reduction in separation performance was determined by using FT-IR. Based on these results, in order to stabilize the metal ions interacting with the polymer through Al(NO3)3, it was concluded that a specific ratio of the amide group was needed in PEBAX as a polymer matrix. View Full-Text
Keywords: olefin; paraffin; copolymer; facilitated transport; nanoparticles olefin; paraffin; copolymer; facilitated transport; nanoparticles
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MDPI and ACS Style

Kim, S.Y.; Cho, Y.; Kang, S.W. Correlation between Functional Group and Formation of Nanoparticles in PEBAX/Ag Salt/Al Salt Complexes for Olefin Separation. Polymers 2020, 12, 667.

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