Transesterification reaction of polyarylate and copolyester (PETG) blends

Taeg Su Oh, Jin Ho Ryou, Yong Sung Chun, Woo Nyon Kim

Research output: Contribution to journalArticlepeer-review

17 Citations (Scopus)


Transesterification reactions between polyarylate (PAr) and a copolyester (PETG) have been Investigated by proton nuclear magnetic resonance (NMR), Fourier-transform infrared spectroscopy (FTIR), and differential scanning calorimetry. Blends of PAr and PETG were prepared by melt mixing and solution-casting with weight fractions of PAr in the blends varying from 0.90 to 0.10. The PETG is a copolyester containing ethylene-1,4-cyclohexylene dimethylene terephthalate. From the thermal analysis of the PAr/PETG melt blends, a single glass transition temperature is observed, which indicates a miscibility between the PAr and PETG. The benzene insoluble fraction of the PAr/PETG (50/50) melt blends and solution-cast blends were characterized using NMR and FTIR. The results of NMR and FTIR support the conclusion that transesterification reactions between the PAr and PETG occurred under the melt blending conditions applied.

Original languageEnglish
Pages (from-to)838-844
Number of pages7
JournalPolymer Engineering and Science
Issue number5
Publication statusPublished - 1997

ASJC Scopus subject areas

  • General Chemistry
  • Polymers and Plastics
  • Materials Chemistry


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