Morphology and characterization of polyimide/polysilsesquioxane hybrid films with meso/macro double porous structure

Kyung Il Kim; Jun Young Lee; Joon Hyun An; Jung Hyun Kim

doi:10.1142/s0218863504002237

Morphology and characterization of polyimide/polysilsesquioxane hybrid films with meso/macro double porous structure

Kyung Il Kim, Jun Young Lee, Joon Hyun An, Jung Hyun Kim

Department of Chemical and Biomolecular Engineering

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

Abstract

Supercritical CO₂ (ScCO₂) can dissolve organic materials easily just by changing temperature and pressure. This property of ScCO₂ can be applied to extract some ScCO₂-philic organic molecules from matrix material. The ScCO₂ was used to generate the meso/macro double porous structure of polyimide/polysilsesquioxane (PI/PSSQ) hybrid film. The morphology of the porous structure was measured by scanning electron microscope (SEM). Here, we demonstrate that the ScCO₂ could penetrate into the hybrid thin film and take away the small molecules, which are the by-product (CO₂) from the imidization reaction of the PI segment and the solvent remained in the PSSQ segment by sol-gel process.

Original language	English
Pages (from-to)	541-545
Number of pages	5
Journal	Journal of Nonlinear Optical Physics and Materials
Volume	13
Issue number	3-4
DOIs	https://doi.org/10.1142/s0218863504002237
Publication status	Published - 2004 Dec

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Physics and Astronomy (miscellaneous)

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title = "Morphology and characterization of polyimide/polysilsesquioxane hybrid films with meso/macro double porous structure",

abstract = "Supercritical CO2 (ScCO2) can dissolve organic materials easily just by changing temperature and pressure. This property of ScCO2 can be applied to extract some ScCO2-philic organic molecules from matrix material. The ScCO2 was used to generate the meso/macro double porous structure of polyimide/polysilsesquioxane (PI/PSSQ) hybrid film. The morphology of the porous structure was measured by scanning electron microscope (SEM). Here, we demonstrate that the ScCO2 could penetrate into the hybrid thin film and take away the small molecules, which are the by-product (CO2) from the imidization reaction of the PI segment and the solvent remained in the PSSQ segment by sol-gel process.",

author = "Kim, {Kyung Il} and Lee, {Jun Young} and An, {Joon Hyun} and Kim, {Jung Hyun}",

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T1 - Morphology and characterization of polyimide/polysilsesquioxane hybrid films with meso/macro double porous structure

AU - Kim, Kyung Il

AU - Lee, Jun Young

AU - An, Joon Hyun

AU - Kim, Jung Hyun

PY - 2004/12

Y1 - 2004/12

N2 - Supercritical CO2 (ScCO2) can dissolve organic materials easily just by changing temperature and pressure. This property of ScCO2 can be applied to extract some ScCO2-philic organic molecules from matrix material. The ScCO2 was used to generate the meso/macro double porous structure of polyimide/polysilsesquioxane (PI/PSSQ) hybrid film. The morphology of the porous structure was measured by scanning electron microscope (SEM). Here, we demonstrate that the ScCO2 could penetrate into the hybrid thin film and take away the small molecules, which are the by-product (CO2) from the imidization reaction of the PI segment and the solvent remained in the PSSQ segment by sol-gel process.

AB - Supercritical CO2 (ScCO2) can dissolve organic materials easily just by changing temperature and pressure. This property of ScCO2 can be applied to extract some ScCO2-philic organic molecules from matrix material. The ScCO2 was used to generate the meso/macro double porous structure of polyimide/polysilsesquioxane (PI/PSSQ) hybrid film. The morphology of the porous structure was measured by scanning electron microscope (SEM). Here, we demonstrate that the ScCO2 could penetrate into the hybrid thin film and take away the small molecules, which are the by-product (CO2) from the imidization reaction of the PI segment and the solvent remained in the PSSQ segment by sol-gel process.

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Morphology and characterization of polyimide/polysilsesquioxane hybrid films with meso/macro double porous structure

Abstract

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