Macromolecular Research

, Volume 26, Issue 3, pp 254–262 | Cite as

The Effects of Compatibilizers on the Morphological, Mechanical, and Optical Properties of Biaxially Oriented Poly(ethylene terephthalate)/Syndiotactic Polystyrene Blend Films

  • Kweon Hyung Han
  • Myung Geun Jang
  • Kyu Jin Juhn
  • Choonglai Cho
  • Woo Nyon Kim


In this study, the effects of three different types of compatibilizers on the morphological, mechanical, and optical properties of poly(ethylene terephthalate) (PET) and syndiotactic-polystyrene (s-PS) (70/30, wt%) blends and biaxially oriented blend films of the two polymers were investigated. The morphological results of the PET/s-PS (70/30) blends revealed that when the 5 phr polystyrene-g-oxazoline (PS-g-OXA) was used as a compatibilizer, the domain size showed minimum. The mechanical studies of the PET/s-PS (70/30) blends showed that when 5 phr PS-g-OXA was used, increased tensile strength was obtained. The transmittance of the blend film showed the highest value (83.7%) for the biaxially oriented PET/s-PS (70/30) blend films with the PS-g-OXA (5 phr), compared with that of the blends without compatibilizer (70.8%), or with the styrene-co-maleic anhydride as a compatibilizer, at the wavenumber of 600 nm. The tensile strength of the biaxially oriented PET/s-PS (70/30) blend films also showed the highest value when PS-g-OXA (5 phr) was used as a compatibilizer. The morphological, optical, and mechanical results of the PET/s-PS (70/30) blends and biaxially oriented blend films of the two polymers showed that PS-g-OXA was the most effective compatibilizer, and that the optimum compatibilizer content was 5 phr.


polymer blend compatibility morphology compatibilizer polymer film 


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Copyright information

© The Polymer Society of Korea and Springer Science+Business Media B.V., part of Springer Nature 2018

Authors and Affiliations

  • Kweon Hyung Han
    • 1
    • 2
  • Myung Geun Jang
    • 1
  • Kyu Jin Juhn
    • 1
  • Choonglai Cho
    • 3
  • Woo Nyon Kim
    • 1
  1. 1.Department of Chemical and Biological EngineeringKorea UniversitySeoulKorea
  2. 2.SKC Advanced Technology R&DSuwon, GyeonggiKorea
  3. 3.Graduate School of Management of TechnologyKorea UniversitySeoulKorea

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