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Dive into the research topics where Shouji Iwatsuki is active.

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Featured researches published by Shouji Iwatsuki.


Nippon Kagaku Kaishi | 1971

Reactivity of a Molecular Complex between Isobutyl Vinyl Ether and Maleic Anhydride

Genji Imokawa; Takashi Kokubo; Shouji Iwatsuki; Yuya Yamashita

イソブチルピニルエーテル (IBVE)-無水マレイン酸 (MAnh)-アクリロニトリル (AN) 三元系のラジカル共重合を行ない, 錯体機構の取扱いによる IBVE-MAnh 錯体の反応性を検討した。その結果, 錯体と AN の反応性は [IBVE]≧[MAnh] の仕込濃度では, riK(complex)=9.45±0.17, r2/K(AN)=0.09±0.01, [MAnh]>[IBVE]の仕込濃度では,暇K(complex)=5.85+0.18, r2/K(AN)=0.15±0.03となり, 仕込比により錯体の反応性に変化がみられた。この原因について検討するため, 希釈効果, 溶媒効果などを行なった。結果は A+DA〓AD のほかに AD+D〓AD2,AD+A〓A2D など1:1組成以外の錯体の寄与を仮定するとうまく説明できる。


Macromolecules | 1968

Studies on the Charge-Transfer Complex and Polymerization. XVII. The Reactivity of the Charge-Transfer Complex in Alternating Radical Copolymerization of Vinyl Ethers and Maleic Anhydride

Takashi Kokubo; Shouji Iwatsuki; Yuya Tamashita


Macromolecular Chemistry and Physics | 1965

The charge transfer complex formation between p‐dioxene and maleic anhydride and their participation in polymerization

Shouji Iwatsuki; Yuya Yamashita


Journal of Polymer Science Part A | 1966

Correlation of cationic copolymerization parameters of cyclic ethers, formals, and esters

Yuya Yamashita; Tetsuo Tsuda; Masahiko Okada; Shouji Iwatsuki


Journal of Polymer Science Part A | 1967

Studies on the charge-transfer complex and polymerization. Part XIII. Dilution and solvent effects in radical terpolymerization†

Shouji Iwatsuki; Yuya Yamashita


Macromolecular Chemistry and Physics | 1967

Estimation of relative reactivity ratios in radical alternating copolymerization by means of terpolymerization

Shouji Iwatsuki; Yuya Yamashita


Journal of Polymer Science Part B: Polymer Letters | 1964

Basicity as a factor in the cationic copolymerization of cyclic ethers

Shouji Iwatsuki; Naohisa Takigawa; Masahiko Okada; Yuya Yamashita; Y. Ishii


Macromolecular Chemistry and Physics | 1969

Studies on the charge‐transfer complex and polymerizations. Part XIX. Spontaneous copolymerization of 1.2‐dimethoxyethylen and p‐dioxene with maleic anhydride

Takashi Kokubo; Shouji Iwatsuki; Yuya Yamashita


Macromolecules | 1970

Studies on Charge-Transfer Complex and Polymerization. XX. Terpolymerizations with the Anethole-Maleic Anhydride Alternating Copolymerization Stystem

Takashi Kokubo; Shouji Iwatsuki; Yuya Yamashita


Macromolecular Chemistry and Physics | 1967

Radical terpolymerization of dodecyl vinyl ether, fumaronitrile and β‐chloroethyl acrylate

Shouji Iwatsuki; Masaaki Shin; Yuya Yamashita

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