直接重合法によるポリ(1,4‐ブチレンテレフタレート)の合成とその性質に関する研究 IV  ポリ(1,4‐ブチレンテレフタレート)の固相重縮合反応

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タイトル別名
  • Solid state polycondensation of poly(1,4-butyleneterephthalate).
  • ポリ 1 4 ブチレンテレフタレート ノ コソウ ジュウシュクゴウ ハンノウ

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抄録

The optimum reaction conditions in solid-state polycondensation of poly (1, 4-butylene terephthalate) (PBT) were investigated in order to obtain high molecular weight PBT. It was found that the solid-state polycondensation of PBT proceeds at a temperature in the range of 185 to 200°C under reduced pressure. This is due to the fact that the activation energy of the polycondensation reaction is 29.5kcal/mol and considerably smaller than that of the thermal decomposition reaction of PBT, i.e., ca. 40kcal/mol. To accelerate the reaction rate, it is important to carry out the polycondensation reaction at low humidity using PBT having a low carboxyl end group content and a large specific surface area.

収録刊行物

  • 繊維学会誌

    繊維学会誌 43 (10), 538-543, 1987

    社団法人 繊維学会

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