Research output: Contribution to journal › Article › peer-review
Novel PDMS-b-PPO Membranes Modified with Graphene Oxide for Efficient Pervaporation Ethanol Dehydration. / Дмитренко, Мария Евгеньевна; Чепелева, Анастасия Дмитриевна; Лямин, Владислав Павлович; Кузьминова, Анна Игоревна; Мазур, Антон Станиславович; Семёнов, Константин Николаевич; Пенькова, Анастасия Владимировна.
In: Polymers, Vol. 12, No. 9, 832, 25.08.2022, p. 832.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Novel PDMS-b-PPO Membranes Modified with Graphene Oxide for Efficient Pervaporation Ethanol Dehydration
AU - Дмитренко, Мария Евгеньевна
AU - Чепелева, Анастасия Дмитриевна
AU - Лямин, Владислав Павлович
AU - Кузьминова, Анна Игоревна
AU - Мазур, Антон Станиславович
AU - Семёнов, Константин Николаевич
AU - Пенькова, Анастасия Владимировна
N1 - Publisher Copyright: © 2022 by the authors.
PY - 2022/8/25
Y1 - 2022/8/25
N2 - Purification and concentration of bioalcohols is gaining new status due to their use as a promising alternative liquid biofuel. In this work, novel high-performance asymmetric membranes based on a block copolymer (BCP) synthesized from polydimethylsiloxane (PDMS) and poly(2,6-dimethyl-1,4-phenylene oxide) (PPO) were developed for enhanced pervaporation dehydration of ethanol. Improvement in dehydration performance was achieved by obtaining BCP membranes with a “non-perforated” porous structure and through surface and bulk modifications with graphene oxide (GO). Formation of the BCP was confirmed by Fourier-transform infrared (FTIR) and nuclear magnetic resonance (NMR) spectroscopies. The changes to morphology and physicochemical properties of the developed BCP and BCP/GO membranes were studied by scanning electron (SEM) and atomic force (AFM) microscopies, thermogravimetric analysis (TGA) and contact angle measurements. Transport properties of the developed membranes were evaluated by the pervaporation dehydration of ethanol over a wide concentration range (4.4–70 wt.% water) at 22 °C. The BCP (PDMS:PPO:2,4-diisocyanatotoluene = 41:58:1 wt.% composition) membrane modified with 0.7 wt.% GO demonstrated optimal transport characteristics: 80–90 g/(m2h) permeation flux with high selectivity (76.8–98.8 wt.% water in the permeate, separation factor of 72–34) and pervaporation separation index (PSI) of 5.5–2.9.
AB - Purification and concentration of bioalcohols is gaining new status due to their use as a promising alternative liquid biofuel. In this work, novel high-performance asymmetric membranes based on a block copolymer (BCP) synthesized from polydimethylsiloxane (PDMS) and poly(2,6-dimethyl-1,4-phenylene oxide) (PPO) were developed for enhanced pervaporation dehydration of ethanol. Improvement in dehydration performance was achieved by obtaining BCP membranes with a “non-perforated” porous structure and through surface and bulk modifications with graphene oxide (GO). Formation of the BCP was confirmed by Fourier-transform infrared (FTIR) and nuclear magnetic resonance (NMR) spectroscopies. The changes to morphology and physicochemical properties of the developed BCP and BCP/GO membranes were studied by scanning electron (SEM) and atomic force (AFM) microscopies, thermogravimetric analysis (TGA) and contact angle measurements. Transport properties of the developed membranes were evaluated by the pervaporation dehydration of ethanol over a wide concentration range (4.4–70 wt.% water) at 22 °C. The BCP (PDMS:PPO:2,4-diisocyanatotoluene = 41:58:1 wt.% composition) membrane modified with 0.7 wt.% GO demonstrated optimal transport characteristics: 80–90 g/(m2h) permeation flux with high selectivity (76.8–98.8 wt.% water in the permeate, separation factor of 72–34) and pervaporation separation index (PSI) of 5.5–2.9.
KW - block copolymer
KW - ethanol dehydration
KW - graphene oxide
KW - membrane
KW - pervaporation
KW - poly(2,6-dimethyl-1,4-phenylene oxide)
KW - polydimethylsiloxane
UR - https://www.mendeley.com/catalogue/aed70e81-82e0-3425-b8f2-d3c1f387a5b6/
UR - http://www.scopus.com/inward/record.url?scp=85138677020&partnerID=8YFLogxK
U2 - 10.3390/membranes12090832
DO - 10.3390/membranes12090832
M3 - Article
C2 - 36135851
VL - 12
SP - 832
JO - Polymers
JF - Polymers
SN - 2073-4360
IS - 9
M1 - 832
ER -
ID: 98137070