Investigation on the polymer electrolyte nafion by dynamic light scattering and rheological analysis

Makoto Nakano, Tatsuya Shoji, Shyusei Ohya, Shigeru Yao, Daisuke Tatsumi, Takayoshi Matsumoto

研究成果: ジャーナルへの寄稿学術誌査読

抄録

Solution properties and film properties of the polymer electrolyte (Nafion) were investigated by dynamic light scattering (DLS) and rheological analysis. By DLS measurement, it has been found that the Stokes diameter of Nafion molecules in a DMF solution is larger than that in a water/alcohol solution (SE5112, DuPont). This result clearly shows that the DMF is a better solvent than the solvent component of SE5112. Both SE5112 and the DMF solution behave as almost Newtonian solutions, while Nafion solution in DMF/water mixed solvent shows viscoelasticity due to the aggregation of Nafion molecules. Finally, the mechanical properties and the proton conductivities of the cast film of Nafion from SE5112 and the DMF solution were investigated. The proton conductivity is almost the same in both films, while the mechanical properties of the film made from the DMF solution are much better than those of the film from SE5112. This can be understood as a result of the weaker segregation of crystalline and amorphous regions in the former film.

本文言語英語
ページ(範囲)65-69
ページ数5
ジャーナルNihon Reoroji Gakkaishi
34
2
DOI
出版ステータス出版済み - 2006
外部発表はい

!!!All Science Journal Classification (ASJC) codes

  • 凝縮系物理学
  • 材料力学
  • 機械工学
  • 材料科学一般

フィンガープリント

「Investigation on the polymer electrolyte nafion by dynamic light scattering and rheological analysis」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル