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Masao Kato

Sophia University

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Featured researches published by Masao Kato.

Electrochimica Acta | 2000

Synthesis of proton conducting polymer based on poly(silamine)

Koji Tsuruhara; Masahiro Rikukawa; Kohei Sanui; Naoya Ogata; Yukio Nagasaki; Masao Kato

Abstract New proton conducting polymers based on poly(silamine) (PSA) were synthesized by complexing the polymer and H 3 PO 4 , and the proton conduction of these materials was investigated. The PSA/H 3 PO 4 complex was thermally stable up to 200°C, as indicated by TG/DTA analysis. The conductivity of 10 −5 S cm −1 was observed at 160°C for anhydrous PSA/H 3 PO 4 complexes with a concentration of 0.8 H 3 PO 4 per repeat unit. The carrier ion was proven to be proton on the basis of the H/D isotope effect on conductivity for PSA/H 3 PO 4 and PSA/D 3 PO 4 complexes.

Archive | 1996

Heterotelechelic block copolymers and process for producing the same

Kazunori Kataoka; Carmen Scholz; Michihiro Iijima; Takahito Kutsuna; Yukio Nagasaki; Masao Kato; Teruo Okano

Archive | 1996

Block polymer having functional groups at both ends

Kazunori Kataoka; Masao Kato; Yukio Nagasaki; Teruo Okano

Archive | 1996

Polyethylene oxides having saccharide residue at one end and different functional group at another end, and process for producing the same

Kazunori Kataoka; Masao Kato; Yukio Nagasaki; Teruo Nakamura; Teruo Okano

Archive | 1993

Polyether having heterofunctional groups at both ends, process for the preparation thereof and polymerization initiator therefor

Yasuhisa Sakurai; Teruo Okano; Masayuki Yokoyama; Kazunori Kataoka; Yukio Nagasaki; Nobuyuki Ohsako; Masao Kato

Archive | 1999

Polyoxyethylene derivatives having optionally protected amino group at one end and process for producing the same

Kazunori Kataoka; Masao Kato; Yukio Nagasaki; Takahisa Hayashida; Michihiro Iijima; Teruo Okano

Archive | 1997

Modified polymers containing poly(2-hydroxyethyl(meth)acrylate segment in the molecule

Kazunori Kataoka; Masao Kato; Yukio Nagasaki; Hotaka Ito; Teiji Tsuruta; Yasuhisa Sakurai; Teruo Okano; Ken Suzuki

Archive | 1994

Production of polyoxyalkylene derivative

Michihiro Iijima; Kazunori Kataoka; Masao Kato; Shigeru Kitano; Yukio Nagasaki; Mitsuo Okano; Yasuhisa Sakurai; Masayuki Yokoyama; 政雄 加藤; 茂 北野; 光夫 岡野; 靖久 桜井; 昌幸 横山; 一則 片岡; 幸夫 長崎; 道弘 飯島

Archive | 2000

NOVEL MALEIMIDE-NORBORNENE-BASED COPOLYMER, METHOD FOR MANUFACTURING THE SAME AND OPTICALLY ORIENTED AND CROSSLINKED FILM MATERIAL

Masao Kato; T. Kimura; Shunsuke Kobayashi; Katsutomo Wakabayashi; 政雄 加藤; 駿介 小林; 龍実 木村; 克知 若林

Archive | 1996

Polyethylene oxides having saccharide residue at one end and different functional group at another end

Kazunori Kataoka; Yukio Nagasaki; Masao Kato; Teruo Okano; Teruo Nakamura

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Kazunori Kataoka

Kao Corporation

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Yukio Nagasaki

Sungkyunkwan University

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Teruo Okano

University of Utah

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Michihiro Iijima

Tokyo University of Science

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Carmen Scholz

Tokyo University of Science

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Takahiko Kutsuna

Tokyo University of Science

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Yasuhisa Sakurai

Japan Advanced Institute of Science and Technology

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Teruo Nakamura

Chugai Pharmaceutical Co.

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T. Kimura

National Institute of Advanced Industrial Science and Technology

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Teiji Tsuruta

University of Tokyo

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