Abstract
Translational energy dependence of the atomic oxygen reactivity with polyimide films is reported. The ion beam type atomic oxygen source was used to study atomic oxygen reactivity in a wide range of translational energies. Mass change of the polyimide films was measured by a frequency shift of the quartz crystal microbalance during atomic oxygen beam exposures. The experimental result showed strong translational energy dependence of mass change of the polyimide film, i.e., mass gain was observed at the translational energies below 30 eV whereas mass loss was observed at the higher translational energies. X-ray photoelectron spectra indicated that PMDA in the polyimide structure was degradated by the 5 eV atomic oxygen reaction. Decomposition of ODA was also obvious by the atomic oxygen attacks at higher translational energies. The mass gain observed in this study was explained by the absence of adsorbed oxygen on the polyimide surfaces due primarily to the low flux of the beam. This may lead to the suppression of scission of the polymer chain.
| Original language | English |
|---|---|
| Pages (from-to) | 94-99 |
| Number of pages | 6 |
| Journal | Transactions of the Japan Society for Aeronautical and Space Sciences |
| Volume | 41 |
| Issue number | 132 |
| Publication status | Published - Aug 1998 |
| Externally published | Yes |
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Keywords
- Atomic Oxygen
- Low Earth Orbit
- Material Degradation
- Polyimide
- Reaction Efficiency
- Space Engineering
- Space Environmental Effect
ASJC Scopus subject areas
- Aerospace Engineering
Cite this
Surface reaction of a low flux atomic oxygen beam with a spin-coated polyimide film : Translational energy dependence on the reaction efficiency. / Kinoshita, Hiroshi; Tagawa, Masahito; Umeno, Masataka; Ohmae, Nobuo.
In: Transactions of the Japan Society for Aeronautical and Space Sciences, Vol. 41, No. 132, 08.1998, p. 94-99.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Surface reaction of a low flux atomic oxygen beam with a spin-coated polyimide film
T2 - Translational energy dependence on the reaction efficiency
AU - Kinoshita, Hiroshi
AU - Tagawa, Masahito
AU - Umeno, Masataka
AU - Ohmae, Nobuo
PY - 1998/8
Y1 - 1998/8
N2 - Translational energy dependence of the atomic oxygen reactivity with polyimide films is reported. The ion beam type atomic oxygen source was used to study atomic oxygen reactivity in a wide range of translational energies. Mass change of the polyimide films was measured by a frequency shift of the quartz crystal microbalance during atomic oxygen beam exposures. The experimental result showed strong translational energy dependence of mass change of the polyimide film, i.e., mass gain was observed at the translational energies below 30 eV whereas mass loss was observed at the higher translational energies. X-ray photoelectron spectra indicated that PMDA in the polyimide structure was degradated by the 5 eV atomic oxygen reaction. Decomposition of ODA was also obvious by the atomic oxygen attacks at higher translational energies. The mass gain observed in this study was explained by the absence of adsorbed oxygen on the polyimide surfaces due primarily to the low flux of the beam. This may lead to the suppression of scission of the polymer chain.
AB - Translational energy dependence of the atomic oxygen reactivity with polyimide films is reported. The ion beam type atomic oxygen source was used to study atomic oxygen reactivity in a wide range of translational energies. Mass change of the polyimide films was measured by a frequency shift of the quartz crystal microbalance during atomic oxygen beam exposures. The experimental result showed strong translational energy dependence of mass change of the polyimide film, i.e., mass gain was observed at the translational energies below 30 eV whereas mass loss was observed at the higher translational energies. X-ray photoelectron spectra indicated that PMDA in the polyimide structure was degradated by the 5 eV atomic oxygen reaction. Decomposition of ODA was also obvious by the atomic oxygen attacks at higher translational energies. The mass gain observed in this study was explained by the absence of adsorbed oxygen on the polyimide surfaces due primarily to the low flux of the beam. This may lead to the suppression of scission of the polymer chain.
KW - Atomic Oxygen
KW - Low Earth Orbit
KW - Material Degradation
KW - Polyimide
KW - Reaction Efficiency
KW - Space Engineering
KW - Space Environmental Effect
UR - http://www.scopus.com/inward/record.url?scp=0032132266&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0032132266&partnerID=8YFLogxK
M3 - Article
VL - 41
SP - 94
EP - 99
JO - Transactions of the Japan Society for Aeronautical and Space Sciences
JF - Transactions of the Japan Society for Aeronautical and Space Sciences
SN - 0549-3811
IS - 132
ER -