Misc - YOSHIMIZU Hiroaki
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Gas Separation by Polymer Membranes Invited
YOSHIMIZU Hiroaki
Kobunshi (High Polymers, Japan) 67 ( 7 ) 400 - 401 2018.07
Authorship：Lead author Language：Japanese Publishing type：Article, review, commentary, editorial, etc. (scientific journal) Publisher：The Society of Polymer Science, Japan
There is no strong interaction between polymers and
gases. Therefore, it can be said that the general princple of gas-separation by polymer membranes is diffusion controlling not affinity tuning. Some unique polymer crystals were useful and had high-potential for gas-separation, because the interchain distances between polymer chains were well-adjusting to the size of gas molecules. In addition, these crystals showed diffusion anisotrpy. The enhancement of gas diffusion and permeation properties was confirmed by mono-axially orienting the crystal with a magnetic field. This method is one of the proposals to obtain a good gas-separation polymer membrane.Other Link： http://main.spsj.or.jp/c5/kobunshi/kobunshi.php
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NMR Characterizations of Polymers Using Gases as Probes Invited Reviewed
Hiroaki YOSHIMIZU
J. Jpn. Soc. Colour Mater. 88 ( 8 ) 265 - 270 2015.08
Authorship：Lead author Language：Japanese Publishing type：Article, review, commentary, editorial, etc. (scientific journal) Publisher：Japan Society of Colour Material (JSCM)
The gas transport properties (gas solubility, diffusivity and permeability) of polymer materials are directly influenced by their structural characteristics. In this article several studies wherein we obtained the NMR spectral data of polymer-gas systems are introduced. Namely, the gas sorption amount can be determined, detailed images of fine higher-ordered structures can be gained through the analysis of Xe-129 NMR chemical shifts, and clarification of the relationship between gas diffusion properties and the higher-ordered structures is possible.
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Application of NMR Spectroscopy to the Characterization of Gas Separation Membranes
Hiroaki Yoshimizu
Sen'i Gakkaishi 68 ( 11 ) P_323 - P_328 2012.12
Authorship：Lead author Language：Japanese Publishing type：Article, review, commentary, editorial, etc. (international conference proceedings) Publisher：The Society of Fiber Science and Technology, Japan
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Characterization of higher-odered structures of solid polymers by 129Xe NMR
Hiroaki YOSHIMIZU
Chemical Engineering 56 ( 8 ) 636 - 643 2011.08
Language：Japanese Publishing type：Article, review, commentary, editorial, etc. (scientific journal) Publisher：Kagaku Kogyosha, Inc.
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Function of Separation by Polymer Gas Separation by Using the Polymer Crystal
H. Yoshimizu, Y. Tsujita
Kobunshi (High Polymers, Japan) 54 ( 11 ) 827 - 832 2005.11
Authorship：Lead author Language：Japanese Publishing type：Article, review, commentary, editorial, etc. (international conference proceedings) Publisher：The Society of Polymer Science, Japan
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Characterization of Polymers in the Solid State by 129Xe NMR Spectroscopy
H. Yoshimizu, T. Suzuki, Y. Tsujita
Sen'i Gakkaishi 60 ( 10 ) 498 - 503 2004.10
Authorship：Lead author Language：Japanese Publishing type：Article, review, commentary, editorial, etc. (international conference proceedings) Publisher：The Society of Fiber Science and Technology, Japan
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Control of Gas Permeability for Cellulose Membrane by Microwavw Irradiation
Y. Nakai, Y. Tsujita, H. Yoshimizu, S. Okamoto
Cellulose Communications 11 ( 2 ) 58 - 62 2004.02
Language：Japanese Publishing type：Article, review, commentary, editorial, etc. (international conference proceedings) Publisher：The Cellulose Society of Japan
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Applications of NMR Spectroscopy to the Structure and Ionic Aggregates of Ionomers
H.Yoshimizu, Y.Tsujita
44 1 - 22 2001.07
Authorship：Lead author Language：English Publishing type：Article, review, commentary, editorial, etc. (scientific journal) Publisher：Academic Press
NMR法を用いたアイオノマーの研究例を最新の報告から紹介した．特にエチレンアイオノマーではイオン会合体の存在に加えてエチレンマトリックス相が結晶・非晶の両方を含み，複雑であるが，各種NMR法はこれの構造的知見を詳細に得る一つの有力な手段，との立場で解説した．
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Gas sorption properties and fine structures of glassy polymers
Hiroaki Yoshimizu, Yoshiharu Tsujita
Polymer application 48 ( 12 ) 541 - 547 1999.12
Authorship：Lead author Language：Japanese Publishing type：Article, review, commentary, editorial, etc. (scientific journal) Publisher：Kobunshi Knkoukai
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Gas permeation membranes of polyimides
Yoshiharu Tsujita, Hiroaki Yoshimizu
New Materials 7 ( 5 ) 13 - 17 1996.05
Language：Japanese Publishing type：Article, review, commentary, editorial, etc. (scientific journal) Publisher：JAPAN INDUSTRIAL PUBLISHING CO., LTD.
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Gas permeation properties of the rigid polyimides
Hiroaki Yoshimizu, Yoshiharu Tsujita
Polymer Applications 45 ( 2 ) 32 - 39 1996.02
Authorship：Lead author Language：Japanese Publishing type：Article, review, commentary, editorial, etc. (scientific journal) Publisher：Kobunshi Kankoukai
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NMR Studies of Higher-order Structures of Solid Polymers
H. Kurosu, S. Ando, H. Yoshimizu, I. Ando
28 189 - 275 1994.03
Language：English Publishing type：Article, review, commentary, editorial, etc. (scientific journal) Publisher：Academic Press Limited. Published by Elsevier Inc.
合成高分子から生体高分子まで様々な高分子を対象とした，各種固体NMR法を用いた研究例を242の文献とともに紹介した．
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