<b>Network Formation of Hydroxyl or Carboxyl Group-Containing Methacrylate Copolymers Based on Reaction Selectivity </b><b>of Isothiocyanate Moiety </b>

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  • SETO Ryota
    Molecular Engineering Institute, Kinki University Department of Biological & Environmental Chemistry, Kinki University
  • MATSUMOTO Kozo
    Molecular Engineering Institute, Kinki University Department of Biological & Environmental Chemistry, Kinki University
  • ENDO Takeshi
    Molecular Engineering Institute, Kinki University

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Other Title
  • <b>イソチオシアナト基の反応選択性を利用したアルコール性水酸基および </b><b>カルボキシ基をもつメタクリラートコポリマーのネットワーク化 </b>
  • イソチオシアナト基の反応選択性を利用したアルコール性水酸基およびカルボキシ基をもつメタクリラートコポリマーのネットワーク化
  • イソチオシアナトキ ノ ハンノウ センタクセイ オ リヨウ シタ アルコールセイ スイサンキ オヨビ カルボキシキ オ モツ メタクリラートコポリマー ノ ネットワークカ

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Abstract

Cross-linkings of methacrylate copolymers obtained by radical copolymerization of 2-isothiocyanatoethyl methacrylate (ITEMA) and 2-hydroxyethyl methacrylate (HEMA) or methacrylic acid (MAA) were examined.Poly(ITEMA-co-HEMA) was cross-linked at room temperature in tetrahydrofuran (THF) by adding 1,8-diazabicyclo[5.4.0] undec-7-ene (DBU) as a catalyst, to provide the corresponding networked copolymer. Further, poly(ITEMA-co-HEMA) and poly(ITEMA-co-MAA) were cross-linked by heating without any catalysts to give the corresponding networked copolymers, respectively. By IR spectroscopy, it was confirmed that the isothiocyanato group reacted with the hydroxyl group or the carboxyl group in the side chain of the copolymers to afford the networked copolymers. Based on these results, it was concluded that poly(ITEMA-co-HEMA) and poly(ITEMA-co-MAA) have latent ability of cross-linking and that they are useful as key materials for networked copolymer formation.

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