Novel semi-alicyclic polyimide membranes: Synthesis, characterization, and gas separation properties

Chae Young Park, Eun Hee Kim, Jong Hak Kim, Young Moo Lee, Jeong Hoon Kim

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

To develop membrane materials for gas separation, a series of semi-alicyclic polyimides was synthesized using one-step thermal solution imidization from an alicyclic dianhydride with non-planar twisted structure, 5-(2,5-dioxotetrahydrofuryl)-3-methyl-3-cyclohexene-1,2-dicarboxylic anhydride (DOCDA). All synthesized polyimides exhibited amorphous structures and superior thermal stability, with high glass transition temperatures (242–288 °C) withstanding high operation temperature and pressure. They also showed excellent solubility in many polar organic solvents commonly used in the fabrication of gas separation membranes. The gas permeation properties of the polyimide membranes were measured for six representative gases (H2, CO2, O2, CO, N2, and CH4). The gas permeabilities and selectivities of polyimide membranes were significantly influenced by the chemical structure of the diamines, which could be explained reasonably by the kinetic diameter of gases, the fractional free volumes, and d-spacing values of the polyimides. Two DOCDA-based polyimides showed very high selectivities for H2/CH4 and CO2/CH4 and slightly low permeabilities for H2 and CO2, which performances were comparable to the commercial polyimide materials such as P84® and Matrimid® used in gas separation field.

Original languageEnglish
Pages (from-to)325-333
Number of pages9
JournalPolymer
Volume151
DOIs
Publication statusPublished - 2018 Aug 29

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Polyimides
Gases
Membranes
High temperature operations
Gas permeability
Diamines
Anhydrides
Free volume
Carbon Monoxide
Permeation
Organic solvents
Thermodynamic stability
Solubility
Fabrication
Kinetics

All Science Journal Classification (ASJC) codes

  • Organic Chemistry
  • Polymers and Plastics
  • Materials Chemistry

Cite this

Park, Chae Young ; Kim, Eun Hee ; Kim, Jong Hak ; Lee, Young Moo ; Kim, Jeong Hoon. / Novel semi-alicyclic polyimide membranes : Synthesis, characterization, and gas separation properties. In: Polymer. 2018 ; Vol. 151. pp. 325-333.
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abstract = "To develop membrane materials for gas separation, a series of semi-alicyclic polyimides was synthesized using one-step thermal solution imidization from an alicyclic dianhydride with non-planar twisted structure, 5-(2,5-dioxotetrahydrofuryl)-3-methyl-3-cyclohexene-1,2-dicarboxylic anhydride (DOCDA). All synthesized polyimides exhibited amorphous structures and superior thermal stability, with high glass transition temperatures (242–288 °C) withstanding high operation temperature and pressure. They also showed excellent solubility in many polar organic solvents commonly used in the fabrication of gas separation membranes. The gas permeation properties of the polyimide membranes were measured for six representative gases (H2, CO2, O2, CO, N2, and CH4). The gas permeabilities and selectivities of polyimide membranes were significantly influenced by the chemical structure of the diamines, which could be explained reasonably by the kinetic diameter of gases, the fractional free volumes, and d-spacing values of the polyimides. Two DOCDA-based polyimides showed very high selectivities for H2/CH4 and CO2/CH4 and slightly low permeabilities for H2 and CO2, which performances were comparable to the commercial polyimide materials such as P84{\circledR} and Matrimid{\circledR} used in gas separation field.",
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Novel semi-alicyclic polyimide membranes : Synthesis, characterization, and gas separation properties. / Park, Chae Young; Kim, Eun Hee; Kim, Jong Hak; Lee, Young Moo; Kim, Jeong Hoon.

In: Polymer, Vol. 151, 29.08.2018, p. 325-333.

Research output: Contribution to journalArticle

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T1 - Novel semi-alicyclic polyimide membranes

T2 - Synthesis, characterization, and gas separation properties

AU - Park, Chae Young

AU - Kim, Eun Hee

AU - Kim, Jong Hak

AU - Lee, Young Moo

AU - Kim, Jeong Hoon

PY - 2018/8/29

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N2 - To develop membrane materials for gas separation, a series of semi-alicyclic polyimides was synthesized using one-step thermal solution imidization from an alicyclic dianhydride with non-planar twisted structure, 5-(2,5-dioxotetrahydrofuryl)-3-methyl-3-cyclohexene-1,2-dicarboxylic anhydride (DOCDA). All synthesized polyimides exhibited amorphous structures and superior thermal stability, with high glass transition temperatures (242–288 °C) withstanding high operation temperature and pressure. They also showed excellent solubility in many polar organic solvents commonly used in the fabrication of gas separation membranes. The gas permeation properties of the polyimide membranes were measured for six representative gases (H2, CO2, O2, CO, N2, and CH4). The gas permeabilities and selectivities of polyimide membranes were significantly influenced by the chemical structure of the diamines, which could be explained reasonably by the kinetic diameter of gases, the fractional free volumes, and d-spacing values of the polyimides. Two DOCDA-based polyimides showed very high selectivities for H2/CH4 and CO2/CH4 and slightly low permeabilities for H2 and CO2, which performances were comparable to the commercial polyimide materials such as P84® and Matrimid® used in gas separation field.

AB - To develop membrane materials for gas separation, a series of semi-alicyclic polyimides was synthesized using one-step thermal solution imidization from an alicyclic dianhydride with non-planar twisted structure, 5-(2,5-dioxotetrahydrofuryl)-3-methyl-3-cyclohexene-1,2-dicarboxylic anhydride (DOCDA). All synthesized polyimides exhibited amorphous structures and superior thermal stability, with high glass transition temperatures (242–288 °C) withstanding high operation temperature and pressure. They also showed excellent solubility in many polar organic solvents commonly used in the fabrication of gas separation membranes. The gas permeation properties of the polyimide membranes were measured for six representative gases (H2, CO2, O2, CO, N2, and CH4). The gas permeabilities and selectivities of polyimide membranes were significantly influenced by the chemical structure of the diamines, which could be explained reasonably by the kinetic diameter of gases, the fractional free volumes, and d-spacing values of the polyimides. Two DOCDA-based polyimides showed very high selectivities for H2/CH4 and CO2/CH4 and slightly low permeabilities for H2 and CO2, which performances were comparable to the commercial polyimide materials such as P84® and Matrimid® used in gas separation field.

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