Pore size control of carbonized BPDA-pp'ODA polyimide membrane by chemical vapor deposition of carbon

Jun Ichiro Hayashi; Hirotaka Mizuta; Masatake Yamamoto; Katsuki Kusakabe; Shigeharu Morooka

doi:10.1016/S0376-7388(96)00250-5

Pore size control of carbonized BPDA-pp'ODA polyimide membrane by chemical vapor deposition of carbon

Jun Ichiro Hayashi, Hirotaka Mizuta, Masatake Yamamoto, Katsuki Kusakabe, Shigeharu Morooka

Department of Advanced Device Materials

Research output: Contribution to journal › Article › peer-review

129 Citations (Scopus)

Abstract

A BPDA-pp'ODA polyimide film was formed on the outer surface of a porous alumina support tube (outside diameter = 2.4 mm), and it was carbonized at an optimized temperature, 700°C. The membrane obtained showed a permeance of 3 x 10^-9 mol·m^-2·s^-1·Pa^-1 for O₂ and 2 x 10^-8 mol·m^-2·s^-1·Pa^-1 for CO₂ and a permselectivity of 10 for O₂/N₂ and 47 for CO₂/N₂ at 35°C. The membrane was then modified with carbon deposits formed by pyrolysis of propylene at 650°C. The permselectivities for O₂/N₂ and CO₂/N₂ at 35°C were increased to 14 and 73, respectively. Coexisting water vapor decreased permeances of O₂ and N₂ but did not change the O₂/N₂ permselectivity.

Original language	English
Pages (from-to)	243-251
Number of pages	9
Journal	Journal of Membrane Science
Volume	124
Issue number	2
DOIs	https://doi.org/10.1016/S0376-7388(96)00250-5
Publication status	Published - Feb 19 1997

All Science Journal Classification (ASJC) codes

Biochemistry
Materials Science(all)
Physical and Theoretical Chemistry
Filtration and Separation

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10.1016/S0376-7388(96)00250-5

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title = "Pore size control of carbonized BPDA-pp'ODA polyimide membrane by chemical vapor deposition of carbon",

abstract = "A BPDA-pp'ODA polyimide film was formed on the outer surface of a porous alumina support tube (outside diameter = 2.4 mm), and it was carbonized at an optimized temperature, 700°C. The membrane obtained showed a permeance of 3 x 10-9 mol·m-2·s-1·Pa-1 for O2 and 2 x 10-8 mol·m-2·s-1·Pa-1 for CO2 and a permselectivity of 10 for O2/N2 and 47 for CO2/N2 at 35°C. The membrane was then modified with carbon deposits formed by pyrolysis of propylene at 650°C. The permselectivities for O2/N2 and CO2/N2 at 35°C were increased to 14 and 73, respectively. Coexisting water vapor decreased permeances of O2 and N2 but did not change the O2/N2 permselectivity.",

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T1 - Pore size control of carbonized BPDA-pp'ODA polyimide membrane by chemical vapor deposition of carbon

AU - Hayashi, Jun Ichiro

AU - Mizuta, Hirotaka

AU - Yamamoto, Masatake

AU - Kusakabe, Katsuki

AU - Morooka, Shigeharu

PY - 1997/2/19

Y1 - 1997/2/19

N2 - A BPDA-pp'ODA polyimide film was formed on the outer surface of a porous alumina support tube (outside diameter = 2.4 mm), and it was carbonized at an optimized temperature, 700°C. The membrane obtained showed a permeance of 3 x 10-9 mol·m-2·s-1·Pa-1 for O2 and 2 x 10-8 mol·m-2·s-1·Pa-1 for CO2 and a permselectivity of 10 for O2/N2 and 47 for CO2/N2 at 35°C. The membrane was then modified with carbon deposits formed by pyrolysis of propylene at 650°C. The permselectivities for O2/N2 and CO2/N2 at 35°C were increased to 14 and 73, respectively. Coexisting water vapor decreased permeances of O2 and N2 but did not change the O2/N2 permselectivity.

AB - A BPDA-pp'ODA polyimide film was formed on the outer surface of a porous alumina support tube (outside diameter = 2.4 mm), and it was carbonized at an optimized temperature, 700°C. The membrane obtained showed a permeance of 3 x 10-9 mol·m-2·s-1·Pa-1 for O2 and 2 x 10-8 mol·m-2·s-1·Pa-1 for CO2 and a permselectivity of 10 for O2/N2 and 47 for CO2/N2 at 35°C. The membrane was then modified with carbon deposits formed by pyrolysis of propylene at 650°C. The permselectivities for O2/N2 and CO2/N2 at 35°C were increased to 14 and 73, respectively. Coexisting water vapor decreased permeances of O2 and N2 but did not change the O2/N2 permselectivity.

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Pore size control of carbonized BPDA-pp'ODA polyimide membrane by chemical vapor deposition of carbon

Abstract

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