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Alkylamine Incorporation in Amidoxime Functionalized Polymers of Intrinsic Microporosity for Gas Capture and Separation
Author(s) -
Miles Ashley,
Wilfong Walter C.,
Hopkinson David,
Sekizkardes Ali K.
Publication year - 2020
Publication title -
energy technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.91
H-Index - 44
eISSN - 2194-4296
pISSN - 2194-4288
DOI - 10.1002/ente.202000419
Subject(s) - sorbent , hydroxylamine , polymer , diffuse reflectance infrared fourier transform , surface modification , fourier transform infrared spectroscopy , chemical engineering , gas separation , polymer chemistry , materials science , infrared spectroscopy , chemistry , organic chemistry , catalysis , membrane , adsorption , photocatalysis , biochemistry , engineering
Amidoxime functionalized polymers of intrinsic microporosity (PIMs) are synthesized from postsynthetic functionalization of PIM‐1 with hydroxylamine and processed into chemisorbents with alkylamine incorporation. Strong interaction between functionalized PIM‐1 and primary amines is characterized in detail by diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) study. As‐prepared sorbents not only show the highest CO 2 uptake capacity (37.9 cm 3 g −1 at 0.15 bar and 298 K) recorded in reported PIMs, but they also demonstrate tunable, processable, and stable polymeric sorbent design, which can be nanoengineered for other gas capture and separation applications.