著者名,論文名,雑誌名,ISSN,出版者名,出版日付,巻,号,ページ,URL,URL(DOI) Kazuhiro Tanaka and Masaaki Okano and Hiroyuki Toshino and Hidetoshi Kita and Ken‐Ichi Okamoto,Effect of methyl substituents on permeability and permselectivity of gases in polyimides prepared from methyl‐substituted phenylenediamines,Journal of Polymer Science Part B: Polymer Physics,0887-6266,Wiley,1992-07,30,8,907-914,https://cir.nii.ac.jp/crid/1363388845100268928,https://doi.org/10.1002/polb.1992.090300813