Journal of Sericultural and Entomological Science (한국잠사곤충학회지)

Korean Society of Sericultural Science (한국잠사학회)
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Sulfonation of Polyamide Containing Carboxylic Acid

Carboxylic acid를 함유한 sulfonated polynmide의 제조

  • Jeon, Jong-Young (Dept. of Textile Eng., Sangju National University) ;
  • Lee, Gi-Jo (Dept. of Textile Eng., Sangju National University)
  • 전종영 (상주대학교 섬유공학과) ;
  • 이기조 (상주대학교 섬유공학과)
  • Published : 2006.06.30
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Abstract

Polyamide containing carboxylic acid was sulfonated with chlorosulfonic acid in dichloroethane under various conditions. The impact of the sulfonating agent concentration, the reaction temperature, and the reaction time on the ion exchange capacity was investigated. The mechanical and thermal properties, the contact angle, and the change of poly-dispersity were calculated for studying change of their properties. The reactions were effective, when the temperature was below $10^{\circ}C$ and the concentration of chlorosulfonic acid was below 0.05 mol. The value of ion exchange capacity was increased with reaction time. Thermal and mechanical properties were nearly unchanged according to the degree of sulfonation, but the contact angle was increased with increasing the value of ion exchange capacity.

본 연구에서는 뛰어난 물리, 화학적 특성을 가진 CPA에 CSA를 이용하여 $-SO_3H$ group이 도입된 SCPA를 제조하였다. SCPA의 제조과정에서 반응계의 온도가 $10^{\circ}C$ 이상, CSA의 농도가 0.05mol 이상에서는 정상적인 반응이 진행되지 않았다. SCPA의 이온교환 용량에 따라 Tg가 소폭 증가하는 경향을 나타내었다. 치환 반응중 분자간 가교결합이나 주쇄의 분해가 일어났음을 GPC를 통하여 간접적으로 확인 할 수 있었으나, 이들 부 반응에 의한 열적 및 기계적 특성 변화는 거의 없었다.

Keywords

References

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