ナイロン4,改質ナイロン4,およびナイロン4共重合体の熱分解挙動

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タイトル別名
  • THERMAL DEGRADATION BEHAVIORS OF NYLON 4, MODIFIED NYLON 4, AND A COPOLYMER CONTAINING NYLON 4

抄録

Thermal degradation behaviors of nylon 4 homopolymer, a polymer which the chain end of nylon 4 was modified with diamine, and a copolymer containing nylon 4 were investigated by thermal gravimetric analysis at various heating rates. The copolymer (content of nylon 4, 23.5 mole-%) was prepared by anionic copolymerization of α-pyrrolidone and ε-caprolactam.<br>Nylon 4 became more decomposable with a process of degradation reaction. The activation energy of thermal degradation of the polymer was 28-31 kcal/mole, which was smaller than that of nylon 6. The activation energy in the initial stage of degradation depends on the temperature at which degradation of the polymers starts.<br>Thermal stability of the nylon 4 which chain end was modified with bis (p-aminocyclohexyl)-methane increased with rising the temperature of treatment, but its molecular weight remarkably decreased.<br>Thermal stability of the copolymer was considerably superior to that of nylon 4, and in contrast with nylon 4 the copolymer became more non-decomposable with a process of degradation reaction. The degradation reaction proceeded even over the range of nylon 4 contained in the copolymer, indicating occurrence of the degradation reaction of nylon 6 in the main chain of the copolymer.

収録刊行物

  • 繊維学会誌

    繊維学会誌 41 (8), T315-T322, 1985

    社団法人 繊維学会

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