Solvent selection for manufacture of fluorinated polyimide composite membranes

Jian Jun Qin; Tai Shung Chung; Yiming Cao

doi:10.1016/j.desal.2005.04.136

Solvent selection for manufacture of fluorinated polyimide composite membranes

Jian Jun Qin^*, Tai Shung Chung, Yiming Cao

^*Corresponding author for this work

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

3 Scopus citations

Abstract

Polysulfone (PSf) and five fluorinated polyimides were tested for their solubility with 24 organics or their mixtures in order to select a solvent suitable for developing a composite membrane consisting of an inexpensive substrate with an expensive selective layer of high-performance fluorinated polyimides for CO₂/CH₄ separation. The experimental results show that only nitromethane can dissolve 6F-Durene and 6F Durene-mPDA but not dissolve PSf. The manufacture of a 6F-Durene composite membrane using PSf as a substrate was attempted with the dip-coating method, which has not been previously reported. The PSf/6F-Durene composite membrane after repair with silicon rubber was defect free. There is a potential to manufacture a defect-free fluorinated polyimide composite hollow-fiber membrane.

Original language	English (US)
Pages (from-to)	8-13
Number of pages	6
Journal	Desalination
Volume	193
Issue number	1-3
DOIs	https://doi.org/10.1016/j.desal.2005.04.136
State	Published - May 10 2006
Externally published	Yes

Keywords

Composite membranes
Fluorinated polyimide
Hollow fiber
Nitromethane
Polysulfone

ASJC Scopus subject areas

General Chemistry
General Chemical Engineering
General Materials Science
Water Science and Technology
Mechanical Engineering

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10.1016/j.desal.2005.04.136

Cite this

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title = "Solvent selection for manufacture of fluorinated polyimide composite membranes",

abstract = "Polysulfone (PSf) and five fluorinated polyimides were tested for their solubility with 24 organics or their mixtures in order to select a solvent suitable for developing a composite membrane consisting of an inexpensive substrate with an expensive selective layer of high-performance fluorinated polyimides for CO2/CH4 separation. The experimental results show that only nitromethane can dissolve 6F-Durene and 6F Durene-mPDA but not dissolve PSf. The manufacture of a 6F-Durene composite membrane using PSf as a substrate was attempted with the dip-coating method, which has not been previously reported. The PSf/6F-Durene composite membrane after repair with silicon rubber was defect free. There is a potential to manufacture a defect-free fluorinated polyimide composite hollow-fiber membrane.",

keywords = "Composite membranes, Fluorinated polyimide, Hollow fiber, Nitromethane, Polysulfone",

author = "Qin, {Jian Jun} and Chung, {Tai Shung} and Yiming Cao",

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doi = "10.1016/j.desal.2005.04.136",

language = "English (US)",

volume = "193",

pages = "8--13",

journal = "Desalination",

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TY - JOUR

T1 - Solvent selection for manufacture of fluorinated polyimide composite membranes

AU - Qin, Jian Jun

AU - Chung, Tai Shung

AU - Cao, Yiming

PY - 2006/5/10

Y1 - 2006/5/10

N2 - Polysulfone (PSf) and five fluorinated polyimides were tested for their solubility with 24 organics or their mixtures in order to select a solvent suitable for developing a composite membrane consisting of an inexpensive substrate with an expensive selective layer of high-performance fluorinated polyimides for CO2/CH4 separation. The experimental results show that only nitromethane can dissolve 6F-Durene and 6F Durene-mPDA but not dissolve PSf. The manufacture of a 6F-Durene composite membrane using PSf as a substrate was attempted with the dip-coating method, which has not been previously reported. The PSf/6F-Durene composite membrane after repair with silicon rubber was defect free. There is a potential to manufacture a defect-free fluorinated polyimide composite hollow-fiber membrane.

AB - Polysulfone (PSf) and five fluorinated polyimides were tested for their solubility with 24 organics or their mixtures in order to select a solvent suitable for developing a composite membrane consisting of an inexpensive substrate with an expensive selective layer of high-performance fluorinated polyimides for CO2/CH4 separation. The experimental results show that only nitromethane can dissolve 6F-Durene and 6F Durene-mPDA but not dissolve PSf. The manufacture of a 6F-Durene composite membrane using PSf as a substrate was attempted with the dip-coating method, which has not been previously reported. The PSf/6F-Durene composite membrane after repair with silicon rubber was defect free. There is a potential to manufacture a defect-free fluorinated polyimide composite hollow-fiber membrane.

KW - Composite membranes

KW - Fluorinated polyimide

KW - Hollow fiber

KW - Nitromethane

KW - Polysulfone

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DO - 10.1016/j.desal.2005.04.136

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Solvent selection for manufacture of fluorinated polyimide composite membranes

Abstract

Keywords

ASJC Scopus subject areas

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