• Title/Summary/Keyword: Engineering polymer

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Transesterification and Compatibilization in the Blends of Bisphenol-A Polycarbonate and Poly(trimethylene terephthalate)

  • Na Sang-Kuwon;Kong Byeong-Gi;Choi Changyong;Jang Mi-Kyeong;Nah Jae-Woon;Kim Jung-Gyu;Jo Byung-Wook
    • Macromolecular Research
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    • v.13 no.2
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    • pp.88-95
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    • 2005
  • Melt blending of Bisphenol A polycarbonate (PC) and poly(trimethylene terephthalate) (PTT) was carried out over the entire composition range. The mixing time was varied up to 90 min. The resulting samples were analyzed by FT-IR, DSC, XRD, DMTA, $^{1}H NMR$, and SEM. The process of transesterification between the two polymers and their resulting compatibilization were observed. The behaviors of the PTT-rich and PC-rich blends were different and an equilibrium was found to exist. Peculiar behavior, which was different from that of the PTT-rich and PC-rich blends, was exhibited by the 50/50 (PTT/PC) blend.