Kazukiyo Nagai
Meiji University
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Publication
Featured researches published by Kazukiyo Nagai.
Desalination and Water Treatment | 2013
Ryohei Shindo; Akira Yokouchi; Hayato Shirokura; Kazuhito Yoshida; Sou Miyata; Shuichi Sato; Kazukiyo Nagai
Abstract A novel ultraviolet (UV) cross-linking method using fluorine-containing telechelic polyimide membranes was investigated. The base fluorine-containing polyimide was synthesized by polycondensation using the monomers, 4,4′-(hexafluoroisopropylidene) diphthalic anhydride (6FDA) and 2,3,5,6-tetramethyl-1,4-phenylene diamine (TeMPD). Both chain ends of the 6FDA-TeMPD polyimide were end-capped with either UV-reacted groups, 1,1-bis(acryloyloxy methyl) ethyl isocyanate (BEI) group or p-aminostyrene (PAS) group. The two types of telechelic polyimide membranes, 6FDA-TeMPD-BEI and 6FDA-TeMPD-PAS, were formed with UV irradiation from the low-viscosity solutions using the solvent-casting method. The base polyimide membrane was soluble in tetrahydrofuran, whereas both UV-cured telechelic polyimide membranes were partly insoluble in it. This result suggested that both telechelic polyimides reacted at the polymer chain ends through UV irradiation. The density values of the UV-cured membranes were almost the sam...
Journal of Membrane Science | 2013
Masanori Kishida; Takashi Kidesaki; Ryohei Shindo; Shuichi Sato; Tetsuo Miyakoshi; Kazukiyo Nagai
Journal of Applied Polymer Science | 2013
Shuichi Sato; Daiki Gondo; Takayuki Wada; Kazukiyo Nagai
Journal of Membrane Science | 2014
Ryohei Shindo; Masanori Kishida; Hideaki Sawa; Takashi Kidesaki; Shuichi Sato; Kazukiyo Nagai
Journal of Applied Polymer Science | 2013
Hua Gu; Ryohei Shindo; Shuichi Sato; Tetsuo Miyakoshi; Kazukiyo Nagai
Journal of Membrane Science | 2013
Shimpei Konishi; Kazuoki Takeo; Kunihisa Owa; Hiroshi Kawakita; Shuichi Sato; Tetsuo Miyakoshi; Kazukiyo Nagai
Industrial & Engineering Chemistry Research | 2013
Kaoru Nakamura; Takeharu Kitagawa; Suguru Nara; Toshihiro Wakamatsu; Yusuke Ishiba; Shuichi Sato; Kazukiyo Nagai
Polymer | 2013
Yuko Tomita; Kohei Obokata; Takashi Kidesaki; Shuichi Sato; Tetsuo Miyakoshi; Kazukiyo Nagai
Journal of Applied Polymer Science | 2013
Toshiaki Nagasawa; Miho Kobayashi; Sung Lin Lee; Masaya Nakamura; Shuichi Sato; Miriam F. Beristain; Takeshi Ogawa; Tetsuo Miyakoshi; Kazukiyo Nagai
Polymer International | 2013
Shuichi Sato; Masato Ichikawa; Takamasa Ose; Sou Miyata; Yoichi Takahashi; Hironaga Matsumoto; Kazukiyo Nagai
