Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

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

Version 1 : Received: 28 January 2020 / Approved: 29 January 2020 / Online: 29 January 2020 (04:35:25 CET)

How to cite: 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. Preprints 2020, 2020010348 (doi: 10.20944/preprints202001.0348.v1). 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. Preprints 2020, 2020010348 (doi: 10.20944/preprints202001.0348.v1).

Abstract

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 SEM, FT-RAMAN and TGA, including FT-IR. The reduction in separation performance was determined by FT-IR. From these results, in order to stabilize the metal ions interacting with the polymer through Al(NO3)3, it was concluded that specific ratio of amide group was needed in PEBAX as polymer matrix.

Subject Areas

PEBAX; Ag; olefin; membrane; nanoparticle

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