• Miscibility and Thermal Behavior of Biodegradable Synthetic Aliphatic Polyester (Bionolle) and Poly(epichlorohydrin) Blends
  • Kim J, Choi HJ, Lee DC, Yoon JS, Chin IJ, Lee KH
  • 생분해성 지방족 폴리에스테르(Bionolle)와 폴리에피클로로하이드린 블렌드의 상용성 및 열적 거동에 관한 연구
  • 김진호, 최형진, 이동주, 윤진산, 진인주, 이광희
Abstract
Miscibility and thermal behavior of blends of synthetic biodegradable aliphatic polyester(Bionolle) with poly(epichlorohydrin) (PECH) were investigated by a differential scanning calorimetry (DSC), a dynamic mechanical thermal analyzer (DMTA) and a rotational rheometer. Observed both single glass transition temperatures from the DSC in agreement with the Fox equation and single Tg changes as a function of composition from the DMTA indicate that these blend mixtures are miscible. In addition, the miscibility of this blend system was also observed from the single curve of the Cole-Cole plot of log G' (ω) vs. log G " (ω) from the dynamic test using a rotational rheometer, This was further verified from the cryogenically fractured surface of BDP/PECH blends by scanning electron microscopy.

생분해성 지방족 폴리에스테르(Bionolle)와 폴리에피클로로하이드린(PECH) 블렌드의 상용성을 DSC, DMTA 및 회전형 rheometer를 사용하여 알아보았다. DSC를 이용한 실험에서 두 고분자는 Fox식에 일치하는 단일 Tg를 가지며 DMTA실험에서도 마찬가지로 조성별로 순차적으로 하나의 Tg가 보임을 알 수 있었다. 또한 유변학적 성질중 동적실험의 logG'(ω)와 logG''(ω) plot으로부터도 상용성이 있음을 관찰하였다. 이러한 상용성의 결과는 SEM사진에서 나타난 분산된 상이 존재하지 않으며 오직 하나의 상을 이루고 있는 형태학적 특성의 결과와도 일치한다.

Keywords: Aliphatic polyester; Miscibility; Blend; Poly(epichlorohydrin); Thermal property; Rheology; Bionolle; Biodegradable polymer

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This Article

  • 2000; 24(3): 358-365

    Published online May 25, 2000