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Gas Transport Properties of the Crystalline Phase Controlled Its Orientation of Poly(4-methyl-1-pentene)
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- YOSHIMIZU Hiroaki
- Graduate School of Engineering, Nagoya Institute of Technology
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- OKUMURA Yuki
- Graduate School of Engineering, Nagoya Institute of Technology
Bibliographic Information
- Other Title
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- 配向制御されたポリ4-メチル-1-ペンテン結晶相における気体輸送特性
- ハイコウ セイギョ サレタ ポリ 4-メチル-1-ペンテン ケッショウソウ ニ オケル キタイ ユソウ トクセイ
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Description
The gas permeation and diffusion properties of drawn and undrawn membranes of poly(4-methyl-1-pentene) (PMP) membranes were investigated in relation to the orientation of the crystal phase. From the results of infrared dichroism and X-ray diffraction, we conclude that the c-axis of PMP crystals are uniaxially oriented in the drawing direction. The permeation coefficients of these drawn membranes for relatively small gas molecules were smaller than those of the undrawn membranes with randomly oriented crystals. On the other hand, the permeation of large gas molecules is not effected by the orientation of the crystals. Furthermore, we found a diffusion anisotropy of the PMP crystals when investigating the diffusion behavior of the methane in PMP membranes by pulsed field gradient 1H NMR.
Journal
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- KOBUNSHI RONBUNSHU
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KOBUNSHI RONBUNSHU 71 (11), 601-607, 2014
The Society of Polymer Science, Japan
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Keywords
Details 詳細情報について
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- CRID
- 1390001206526519552
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- NII Article ID
- 130004705559
- 40020274971
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- NII Book ID
- AN00085011
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- ISSN
- 18815685
- 03862186
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- NDL BIB ID
- 025931560
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- Text Lang
- ja
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- Article Type
- journal article
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- Data Source
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- JaLC
- NDL Search
- Crossref
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed