A novel synthetic process of polyimide/poly(methyl silsesquioxane) hybrid materials with nano/micro pore structures

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

doi:10.1080/15421400490505848

A novel synthetic process of polyimide/poly(methyl silsesquioxane) hybrid materials with nano/micro pore structures

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

Department of Chemical and Biomolecular Engineering

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

Abstract

A novel synthetic process for multi-porous polyimide (PI)/poly (methyl silsesquioxane) (PMSSQ) hybrid material has been studied via supercritical CO₂ technology. The end groups of PI precursors were modified by coupling agent to be hybridized with alkoxysitanes and became PMSSQ precursors. PI/PMSSQ hybrid precursor solution was spun on a silicon wafer substrate for film formation. The PI precursor segment was imidized and micro-pores were developed by removal of by-product, CO₂ via supercritical CO ₂ media. The PMSSQ precursor segment was cured and nano-pores were generated by supercritical extraction. Average micro-pore size and nano-pore size were 10μm and 40nm respectively. The dielectric constant of the multi-porous PI/PMSSQ hybrid film was calculated to 2.5.

Original language	English
Pages (from-to)	25-34
Number of pages	10
Journal	Molecular Crystals and Liquid Crystals
Volume	424
DOIs	https://doi.org/10.1080/15421400490505848
Publication status	Published - 2004

Bibliographical note

Funding Information:
Received 1 October 2003; Accepted 12 March 2004. This research was supported financially by the Korea Institute of Science and Technology Evaluation and Planning (National Research Laboratory Program, no. M1-9911-00-0044) and funded in part by the Ministry of Education through the Brain Korea 21 Program. Address correspondence to Jung-Hyun Kim, Dept. of Chemical Engineering, Yonsei University 134 Shinchon-dong, Seodaemun-Ku, Seoul 120-749, Korea. Tel.: 82-2-2123-4162, Fax: 82-2-312-0305, E-mail: jayhkim@yonsei.ac.kr

All Science Journal Classification (ASJC) codes

Chemistry(all)
Materials Science(all)
Condensed Matter Physics

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10.1080/15421400490505848

Cite this

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title = "A novel synthetic process of polyimide/poly(methyl silsesquioxane) hybrid materials with nano/micro pore structures",

abstract = "A novel synthetic process for multi-porous polyimide (PI)/poly (methyl silsesquioxane) (PMSSQ) hybrid material has been studied via supercritical CO2 technology. The end groups of PI precursors were modified by coupling agent to be hybridized with alkoxysitanes and became PMSSQ precursors. PI/PMSSQ hybrid precursor solution was spun on a silicon wafer substrate for film formation. The PI precursor segment was imidized and micro-pores were developed by removal of by-product, CO2 via supercritical CO 2 media. The PMSSQ precursor segment was cured and nano-pores were generated by supercritical extraction. Average micro-pore size and nano-pore size were 10μm and 40nm respectively. The dielectric constant of the multi-porous PI/PMSSQ hybrid film was calculated to 2.5.",

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

note = "Funding Information: Received 1 October 2003; Accepted 12 March 2004. This research was supported financially by the Korea Institute of Science and Technology Evaluation and Planning (National Research Laboratory Program, no. M1-9911-00-0044) and funded in part by the Ministry of Education through the Brain Korea 21 Program. Address correspondence to Jung-Hyun Kim, Dept. of Chemical Engineering, Yonsei University 134 Shinchon-dong, Seodaemun-Ku, Seoul 120-749, Korea. Tel.: 82-2-2123-4162, Fax: 82-2-312-0305, E-mail: jayhkim@yonsei.ac.kr",

year = "2004",

doi = "10.1080/15421400490505848",

language = "English",

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pages = "25--34",

journal = "Molecular Crystals and Liquid Crystals",

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AU - Lee, Jun Young

AU - Kim, Jung Hyun

N1 - Funding Information: Received 1 October 2003; Accepted 12 March 2004. This research was supported financially by the Korea Institute of Science and Technology Evaluation and Planning (National Research Laboratory Program, no. M1-9911-00-0044) and funded in part by the Ministry of Education through the Brain Korea 21 Program. Address correspondence to Jung-Hyun Kim, Dept. of Chemical Engineering, Yonsei University 134 Shinchon-dong, Seodaemun-Ku, Seoul 120-749, Korea. Tel.: 82-2-2123-4162, Fax: 82-2-312-0305, E-mail: jayhkim@yonsei.ac.kr

PY - 2004

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N2 - A novel synthetic process for multi-porous polyimide (PI)/poly (methyl silsesquioxane) (PMSSQ) hybrid material has been studied via supercritical CO2 technology. The end groups of PI precursors were modified by coupling agent to be hybridized with alkoxysitanes and became PMSSQ precursors. PI/PMSSQ hybrid precursor solution was spun on a silicon wafer substrate for film formation. The PI precursor segment was imidized and micro-pores were developed by removal of by-product, CO2 via supercritical CO 2 media. The PMSSQ precursor segment was cured and nano-pores were generated by supercritical extraction. Average micro-pore size and nano-pore size were 10μm and 40nm respectively. The dielectric constant of the multi-porous PI/PMSSQ hybrid film was calculated to 2.5.

AB - A novel synthetic process for multi-porous polyimide (PI)/poly (methyl silsesquioxane) (PMSSQ) hybrid material has been studied via supercritical CO2 technology. The end groups of PI precursors were modified by coupling agent to be hybridized with alkoxysitanes and became PMSSQ precursors. PI/PMSSQ hybrid precursor solution was spun on a silicon wafer substrate for film formation. The PI precursor segment was imidized and micro-pores were developed by removal of by-product, CO2 via supercritical CO 2 media. The PMSSQ precursor segment was cured and nano-pores were generated by supercritical extraction. Average micro-pore size and nano-pore size were 10μm and 40nm respectively. The dielectric constant of the multi-porous PI/PMSSQ hybrid film was calculated to 2.5.

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A novel synthetic process of polyimide/poly(methyl silsesquioxane) hybrid materials with nano/micro pore structures

Abstract

Bibliographical note

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