イソフタロイルジイソチオシアナートとジアミンとの重付加によるポリアシルチオ尿素の合成

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タイトル別名
  • Synthesis of Polyacylthioureas by Polyaddition of Isophthaloyldiisothiocyanate with Diamines
  • イソフタロイルジイソチオシアナート ト ジアミン ト ノ ジュウフカ ニヨル

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抄録

Polyacylthioureas (PATU) were synthesized by the polyaddition of various diamines with isophthaloyldiisothiocyanate prepared in pure crystalline form. The solution polyaddition of aromatic diamines in dimethylacetamide or N-methyl-2-pyrrolidone at room temperature afforded PATU with inherent viscosities of up to 1.39 dl/g almost quantitatively. The interfacial polyaddition of aliphatic diamines in benzene, chlorobenzene, or anisole as the organic solvent afforded PATU of high molecular weight; in this case, the presence of a strong base, such as sodium hydroxide or potassium hydroxide, in the aqueous phase worked to increase the inherent viscosity of the polymer as high as 1.21dl/g. Only low molecular weight PATU were obtained by solution polyaddition of aliphatic diamines or by interfacial polyaddition of aromatic diamines. Thermogravimetric analysis showed that PATU lost their weight by 5% at around 210-220°C in both air and nitrogen.

収録刊行物

  • 高分子論文集

    高分子論文集 36 (2), 81-88, 1979

    公益社団法人 高分子学会

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