移動反応によるカチオン重合連鎖の反応性の評価に関する研究

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書誌事項

タイトル別名
  • The Estimation of the Reactivity of the Growing Ion by Chain Transfer Reaction in Cationic Polymerization
  • スピン ラベルホウ ニヨル ブブン カキョウシタ チョウサ アルキル ポリエチ
  • I. The Comparison between <I>para</I>-and <I>ortho</I>-Chlorostyrene and Styrene
  • 第1報パラおよびオルトクロルスチレンとスチレンとの比較
公開日
1963
DOI
  • 10.1295/koron1944.20.49
公開者
公益社団法人 高分子学会

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説明

Styrene, para-and ortho-chlorostyrene were polymerized by SnCl4-CCl8COOH at 30°C. The relative reactivities of monomers and growing ions were estimated by copolymerization and chain transfer reaction to toluene, respectively. The reactivities of monomers and growing ions were found to be in the order of styrene>o-chlorostyrene>p-chlorostyrene and o-chlorostyrene>p-chlorostyrene>styrene, respectively. The chlorostyrenes, which have smaller reactivities of monomers than styrene, have larger reactivities of growing ions than styrene, similarly to the tendency found in radical polymerization. The relationships between the reactivities of the two isomers of chlorostyrenes, however, were opposite to this tendency.<BR>The reactivities of monomers in monomer transfer reaction were found to be in the order of styrene>o-chlorostyrene>p-chlorostyrene.<BR>These experimental facts were discussed in correlation with the electrostatic and the steric effects of chlorine atom.

収録刊行物

  • 高分子化學

    高分子化學 20 (213), 49-57, 1963

    公益社団法人 高分子学会

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