アクリル酸ブチル-アクリルニトリル共重合体の架橋結合についての知見

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書誌事項

タイトル別名
  • STUDIES ON NATURAL RUBBER
  • アクリルサン ブチル-アクリルニトリル キョウジュウゴウタイ ノ カキョウ ケツゴウ ニ ツイテ ノ チケン
  • (XI) INFORMATION ON THE CROSSLINKAGE OF BUTYLACRYLATE-ACRYLONITRILE COPOLYMERS

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抄録

The crosslinkage of butylacrylate-acrylonitrile (87/13) copolymer, cured with triethylentetramine-sulfur, was investigated and the following results was obtained.<br>1) From the swelling measurements of the vulcanizates, the interaction constant of the polymer-solvent (μ) were estimated for various solvents and the cohesive energy densities of the copolymer was given as 8.58 (cal/cc)1/2 from these μ values.<br>2) From the relation between the amount of crosslinks and of combined sulfur, it was found that the aminolysis of ester groups was main reaction in the crosslinking, because the ultimate number of crosslinks were more dependent on the amine concentration than the combined sulfur. It may be considered that sulfur evolves H2S during cure and partly combines with NH groups in the crosslinkage of polyamine and the products accelerate aminolysis.

収録刊行物

  • 日本ゴム協会誌

    日本ゴム協会誌 34 (11), 909-915, 1961

    一般社団法人 日本ゴム協会

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