液状ポリブタジエン　ＩＩ　　シクロヘキサノンペルオキシド類を用いる１，３‐ブタジエンの重合

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タイトル別名
  • Polymerization of 1, 3-Butadiene with Cyclohexanone Peroxides
  • シクロヘキサノンペルオキシドルイ オ モチイル 1 3 ブタジエン ノ ジュウ

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抄録

The polymerization of 1, 3-butadiene with cyclohexanone peroxides was investigated. The terminal functional groups of the polymers prepared under various conditions were compared with those of the standard polymer obtained by cyclohexanone-hydrogen peroxide. 1-Aminocyclohexyl hydroperoxide (AHP) and tricyclohexylidenetriperoxide (TCTP) were synthesized from cyclohexanone, hydrogen peroxide, and other additives. Then, 1, 3-butadiene was polymerized in the presence of these peroxides. When tertiary amine having alkyl chains of intermediate length e. g., tri-n-butyl amine, was added, the carboxyl content of the polymer increased. The amine would attack ketone peroxide nucleophilically to form caproyl radicals which initiate the polymerization. The polymerization initiated by AHP and the polymerization in the presence of ammonia afforded polymers having carbamoyl groups in addition to the carboxyl group at the chain end. The carbamoyl groups were converted to carboxyl groups by hydrolysis. The polymers obtained by TCTP have a small amount of hydroxyl terminals together with alkyl terminals. It was concluded that cyclohexanone reacts with hydrogen peroxide to form cyclohexanone peroxides, which decompose to radical initiators of the polymerization.

収録刊行物

  • 高分子論文集

    高分子論文集 35 (10), 641-647, 1978

    公益社団法人 高分子学会

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