Journal of Sericultural and Entomological Science (한국잠사곤충학회지)

Korean Society of Sericultural Science (한국잠사학회)
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Differential Scanning Calorimetric and Thermogravimetric Analysis of Silk Fibroin / poly (Vinyl pyrrolidone)

견단백질 / Poly (Vinyl pyrrolidone)의 열특성

  • 권해용 (농촌진흥청 농업과학기술원 농업생물부) ;
  • 이광길 (농촌진흥청 농업과학기술원 농업생물부) ;
  • 여주홍 (농촌진흥청 농업과학기술원 농업생물부) ;
  • 우순옥 (농촌진흥청 농업과학기술원 농업생물부) ;
  • 한상미 (농촌진흥청 농업과학기술원 농업생물부)
  • Published : 2007.12.30
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Abstract

Silk fibroin/poly (vinyl pyrrolidone) conjugates were prepared and characterized through differential thermal calorimeter and thermogravimetry. The glass transition temperature (Tg) of poly (vinyl pyrrolidone) was not changed by reaction with silk fibroin. However, abnormal exothermic peak was observed at the silk fibroin/poly (vinyl pyrrolidone) conjugates. Thermogravimetric analysis showed that thermal stability of silk fibroin was relatively increased by reaction with PVP.

실크단백질을 이용한 나노화 소재개발을 위한 기초연구의 일환으로 실크 피브로인과 PVP를 반응시켜 제조한 견단백질/PVP의 열 특성을 살펴보기 위하여 시차열분석 및 열중량분석을 행하였다. 1. PVP의 유리전이온도는 $175^{\circ}C$ 부근에서 관찰되었으며 실크 단백질과 반응에 의하여 영향을 받지 않았으나 견단백질/PVP는 $220^{\circ}C$ 부근에서 미지의 발열피크를 나타내었다. 2. 열중량 분석 결과 PVP의 함량이 증가함에 따라 실크 단백질에 기인한 열분해시작온도가 상대적으로 증가하는 것으로 관찰되었다.

Keywords

References

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