不飽和二塩基酸誘導体の合成と重合に関する研究　第２５報　Ｎ‐アルキルイソマレイミドのラジカル共重合における置換基効果

DOI

書誌事項

タイトル別名
  • Studies on Synthesis and Polymerization of Unsaturated Dibasic Acid Derivatives XXV. Effect of Alkyl Substituents on the Radical Copolymerization of N-Alkylisomaleimides.

抄録

Radical copolymerizations of N-alkylisomaleimides (RIMI: R=C2H5, CH2C6H5, CH2CH2C6H5, t-C4H9) (M2) with methyl methacrylate (MMA) (M1) were carried out at 70°C by using 2, 2′-azobisisobutyronitrile as the initiator in 1, 4-dioxane in order to clarify the substituent effect of RIMI. From the results obtained, the monomer reactivity ratios and Q2 and e2 values were determined. The relative reactivities (1/r1) of RIMI containing n-butyl and phenyl substituents previously reported for the attack of a poly (MMA) radical were correlated with the polar substituent constant (σ*) for the substituent of RIMI in the Taft's equation, log (1/r1) =ρ*σ*+δEs. The ρ* and δ were estimated to be 0.5 and 0, respectively. The Q2 and e2 values for RIMI were also correlated with Taft's constants, and increased with increasing σ* value of substituents. The introduction of electron-accepting substituent into RIMI led to a more conjugated structure of isomaleimide. The results were also compared with those of the n-alkylmaleimides.

収録刊行物

  • 高分子論文集

    高分子論文集 49 (6), 513-519, 1992

    公益社団法人 高分子学会

キーワード

詳細情報 詳細情報について

  • CRID
    1390001206521675264
  • NII論文ID
    130004034814
  • DOI
    10.1295/koron.49.513
  • ISSN
    18815685
    03862186
  • 本文言語コード
    ja
  • データソース種別
    • JaLC
    • Crossref
    • CiNii Articles
  • 抄録ライセンスフラグ
    使用不可

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