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Structural Optimization of Interpenetrated Pillared‐Layer Coordination Polymers for Ethylene/Ethane Separation
Author(s) -
Kishida Keisuke,
Horike Satoshi,
Watanabe Yoshihiro,
Tahara Mina,
Inubushi Yasutaka,
Kitagawa Susumu
Publication year - 2014
Publication title -
chemistry – an asian journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.18
H-Index - 106
eISSN - 1861-471X
pISSN - 1861-4728
DOI - 10.1002/asia.201400122
Subject(s) - ethylene , sorption , selectivity , polymer , materials science , porosity , polymer chemistry , chemical engineering , chemistry , organic chemistry , adsorption , catalysis , engineering
With the goal of achieving effective ethylene/ethane separation, we evaluated the gas sorption properties of four pillared‐layer‐type porous coordination polymers with double interpenetration, [Zn 2 (tp) 2 (bpy)] n ( 1 ), [Zn 2 (fm) 2 (bpe)] n ( 2 ), [Zn 2 (fm) 2 (bpa)] n ( 3 ), and [Zn 2 (fm) 2 (bpy)] n ( 4 ) (tp=terephthalate, bpy=4,4′‐bipyridyl, fm=fumarate, bpe=1,2‐di(4‐pyridyl)ethylene and bpa=1,2‐di(4‐pyridyl)ethane). It was found that 4 , which contains the narrowest pores of all of these compounds, exhibited ethylene‐selective sorption profiles. The ethylene selectivity of 4 was estimated to be 4.6 at 298 K based on breakthrough experiments using ethylene/ethane gas mixtures. In addition, 4 exhibited a good regeneration ability compared with a conventional porous material.