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Dive into the research topics where Koji Nishihara is active.

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Featured researches published by Koji Nishihara.


Kobunshi Ronbunshu | 1966

Emulsion Polymerization of Some Vinyl Monomers with the Initiator of Hydrogen Peroxide-Glyoxal

Koji Nishihara; Kenzo Tabuchi; Naokazu Sakota

過酸化水素-グリオキサール系触媒によるスチレン, アクリル酸ブチル, および酢酸ビニルの乳化重合において, グリオキサールが重合速度, および重合度に及ぼす影響を検討した。スチレン, およびアクリル酸ブチルでは重合速度は増加するが, 重合度は小さくなり, 酢酸ビニルでは, 重合速度と重合度とがともに大きくなるのが認められた。グリオキサール存在下に得られたポリ酢酸ビニルでは, 1分子中にほぼ1個のアルデヒド基が定量されることから, その重合度が大きくなるのはポリマー分子中のグリオキサール残基からの重合再開始によるものと考えられる。このようなグリオキサールの効果は過酸化水素との1: 1化合物であるβ-ハイドロパーオキシ-β-オキシ-α-オキソエタン〓の中間的形成によるものと考えられる。


Bulletin of the Chemical Society of Japan | 1975

Conformation and Circular Dichroism of Several N-Acyl-L-prolines

Hisao Nishihara; Koji Nishihara; Tamio Uefuji; Naokazu Sakota


Journal of Polymer Science Part A | 1973

Photocopolymerization of methacryloyl‐L‐valine methyl ester with maleic anhydride

Koji Nishihara; Akihiro Suzuoka; Naokazu Sakota


Journal of Polymer Science Part A | 1974

Stereochemistry of alternating methacryloyl‐L‐valine methyl ester–maleic anhydride copolymer

Koji Nishihara; Naokazu Sakota


Journal of Polymer Science Part A | 1973

Photo‐copolymerization of methacryloyl‐L‐valine methyl ester, methacryloyl‐D‐valine methyl ester, and maleic anhydride

Koji Nishihara; Naokazu Sakota


Bulletin of the Chemical Society of Japan | 1973

Conformation of Methacryloyl- L -proline

Koji Nishihara; Hisao Nishihara; Naokazu Sakota


Journal of Polymer Science Part A | 1974

Photoinduced polymerization of maleic anhydride in dioxane

Isao Nagahiro; Koji Nishihara; Naokazu Sakota


Nippon Kagaku Kaishi | 1969

Telomerization of Butyl Acrylate with Trichloroacetyl Chloride

Naokazu Sakota; Yousuke Okada; Kazunobu Takahashi; Koji Nishihara


Macromolecular Chemistry and Physics | 1973

Photopolymerization of methyl methacrylate induced by thiocyanogen or by pyridinium thiocyanate

Koji Nishihara; Naokazu Sakota


Macromolecular Chemistry and Physics | 1972

Photopolymerization of methyl methacrylate induced by trithiocyanatotripyridine iron(III) complex

Naokazu Sakota; Kazunobu Takahashi; Koji Nishihara

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