Iwao Takase | Researchain

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Kobunshi Ronbunshu | 1990

Studies on synthesis and properties of lactone-containing polymers II. Synthesis and some properties of polymers containing 4-membered lactone units in the main chain: Radical cyclopolymerization of ethyl vinyl citraconate.

Iwao Takase; Koji Hirose; Hiroshi Aida

主鎖にβ-ラクトン単位を含むポリマ-を合成する研究の一環として, シトラコン酸エチルビニル (EVC) のラジカル環化重合をベンゼン中, 70℃で行った. EVCモノマーの合成において, エステル基の位置が異なる二つの異性体, CH2=CHOCOC (CH3) =CHCOOC2H5, CH2=CHOCOCH=C (CH3) COOC2H5が1.15: 1の比率で伴われたが, 両者の分離は成功しなかった. この両異性体混合物の環化重合において, マレイン酸エチルビニルの場合と同様に低モノマー濃度における重合で, 主鎖にβ-ラクトン単位のみを含むポリマーを与えたが, 異なるモノマー構造に由来すると考えられるα-メチル, β-プロピオラクトンとβプロビオラクトンの二種のラクトン単位を0.4: 0.6の比率で含むことを認めた. ポリマーに残存する不飽和基はビニル基に比べシトラコン酸二重結合を2.7～3倍多く含むが, これは重合におけるシトラコン酸二重結合上のメチル基への退化的連鎖移動によると推論された.

Journal of Polymer Science Part B: Polymer Letters | 1968

Photopolymerization of maleimide and its N-substituted derivatives

Masamori Yamada; Iwao Takase; Noriaki Koutou

Kobunshi Ronbunshu | 1969

Syntheses and Polymerization of Unsaturated Dibasic Acid Derivatives

Masamori Yamada; Iwao Takase

Journal of Synthetic Organic Chemistry Japan | 1965

Synthesis and Polymerization of Unsaturated Dibasic Acid Derivatives. IV

Masamori Yamada; Iwao Takase; Kazuko Hayashi; Yoshinori Hashimoto; Yoshinobu Komiya

Kobunshi Ronbunshu | 1961

Studies on Copolymerization of Vinylace tate and Maleic-esters

Masamori Yamada; Iwao Takase

Kobunshi Ronbunshu | 1992

Studies on Synthesis and Polymerization of Unsaturated Dibasic Acid Derivatives XXV. Effect of Alkyl Substituents on the Radical Copolymerization of N-Alkylisomaleimides.

Iwao Takase; Toshihide Matsuyama; Tetsuji Kawamura

Kobunshi Ronbunshu | 1990

Studies on synthesis and properties of lactone-containing polymers. I. Synthesis and some properties of polymers containing 4-membered lactone units in the main chain.

Iwao Takase; Koji Takada; Hiroshi Aida

Kobunshi Ronbunshu | 1962

Polymerizations of Unsaturated Dibasic Acid Derivatives

Masamori Yamada; Iwao Takase

福井大学工学部研究報告 | 1970

PHOTOPOL YMERIZA TION OF MALEIMIDE ANDITS N-SUBSTITUTED DERIVATIVES

Iwao Takase; Noriaki Kohtoh; Masamori Yamada

福井大学工学部研究報告 | 1969

不飽和ニ塩基酸誘導体の合成，重合に関する研究 (第14報) N・フェニルマレイミドのラジカル重合における溶媒効果

正盛山田; 巖高瀬; 陽一石川; 宗治蒔田; Masamori Yamada; Iwao Takase; Yoichi Ishikawa; Soji Makita

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Archive Network Publication Hotspot Collaboration

Network

Latest external collaboration on country level. Dive into details by clicking on the dots.

Hotspot

Dive into the research topics where Iwao Takase is active.

Publication

Featured researches published by Iwao Takase.

Studies on synthesis and properties of lactone-containing polymers II. Synthesis and some properties of polymers containing 4-membered lactone units in the main chain: Radical cyclopolymerization of ethyl vinyl citraconate.

Photopolymerization of maleimide and its N-substituted derivatives

Syntheses and Polymerization of Unsaturated Dibasic Acid Derivatives

Synthesis and Polymerization of Unsaturated Dibasic Acid Derivatives. IV

Studies on Copolymerization of Vinylace tate and Maleic-esters

Studies on Synthesis and Polymerization of Unsaturated Dibasic Acid Derivatives XXV. Effect of Alkyl Substituents on the Radical Copolymerization of N-Alkylisomaleimides.

Studies on synthesis and properties of lactone-containing polymers. I. Synthesis and some properties of polymers containing 4-membered lactone units in the main chain.

Polymerizations of Unsaturated Dibasic Acid Derivatives

PHOTOPOL YMERIZA TION OF MALEIMIDE ANDITS N-SUBSTITUTED DERIVATIVES

不飽和ニ塩基酸誘導体の合成，重合に関する研究 (第14報) N・フェニルマレイミドのラジカル重合における溶媒効果

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