リノール酸メチル熱重合生成物のガスクロマトグラフィー

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書誌事項

タイトル別名
  • Gas-Liquid Chromatography of Thermal Polymerization Products of Methyl Linoleate
  • リノールサン メチル ネツ ジュウゴウ セイセイブツ ノ ガス クロマトグラフィー

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説明

This study shows that gas-liquid chromatography serves as a useful means for investigating the composition of the composite product formed by the thermal polymerization of methyl Linoleate. In particular, temperature-programmed gas-liquid chromatography is useful for the determination of the monomer and dimer contents. The monomer and dimer fractions can be quantitatively separated on column of 1.5% SE 30 silicon gum rubber-coated chromosorb W, with the column temperature being programmed from 200 to 310°C at a rate of 7.5°C per min, ; and the monomer and dimer contents can readily be determined from the peak areas. If desired, the trimer content can be estimated from the residue on the colomn under the assumption that the amount of the tetramers and higher polymers in the thermal polymerization products is negligibly small as compared with the trimer content. This temperature-programmed technique proved to be satisfactory when it is applied to the analysis of monomer-rich and dimer-rich samples from the fractional molecular distillation of thermally polymerized methyl Linoleate. On the other hand, isothermal gas-liquid chromatography served as a satisfactory means for the determination of monomeric isomers in methyl Linoleate-rich fraction separated by vacuum distillation. Results of analysis for monomeric isomers by isothermal gas-liquid chromatography suggest that octadecamonoenoate is formed during the thermal polymeri-zation of methyl linoleate.

収録刊行物

  • 油化学

    油化学 17 (5), 299-303, 1968

    公益社団法人 日本油化学会

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