書誌事項
- タイトル別名
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- Design of Gas Barrier Membrane / Vapor Permeation Membrane - Approach from Diffusivity Prediction Model in Polymer Matrices -
- ガスバリア マク ジョウキ トウカ マク ノ セッケイ コウブンシ チュウ デ ノ ブンシ カクサン リロン ヨリ
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抄録
Molecular diffusivities in polymeric system are important dynamic properties for design of gas barrier/vapor permeation membranes. The number of combination between polymers, penetants, and temperature is quite huge, and diffusivity prediction model in polymeric system is highly required. In order to attain the prediction model that can estimate molecular diffusivity in polymer by using only single component parameters and not using any adjustable parameter, microscopic viewpoint of molecular diffusive motion has been considered. Concretely, microscopic molecular collisions with adjacent molecules have been introduced into the existent free volume model as shell-like free volume around a penetrant molecule. As a result, a diffusivity prediction model in polymer matrices has been achieved for the first time. The required parameters for the predictive calculation are free volume, molecular surface area, and molecular volume of each single component, and in this study, they are calculated using viscoelastic property, semi-empirical quantum chemical calculation, and group contribution method respectively. The predictive ability of the model with the parameters is found to be moderately good.
収録刊行物
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- 膜
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膜 36 (2), 71-78, 2011
日本膜学会
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詳細情報 詳細情報について
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- CRID
- 1390282681399383424
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- NII論文ID
- 10029601702
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- NII書誌ID
- AN0023215X
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- COI
- 1:CAS:528:DC%2BC3MXmtlamtrs%3D
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- ISSN
- 18846440
- 03851036
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- NDL書誌ID
- 11057558
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
- Crossref
- CiNii Articles
- KAKEN
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- 抄録ライセンスフラグ
- 使用不可