Korea-Australia Rheology Journal

The Korean Society of Rheology (한국유변학회)
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Rheological anomalies of the poly(ethylene 2, 6-naphthalate) and poly(ethylene terephthalate) blends depending on the compositions

  • Lee, Hyang-Mok (LG Chem. Research Park) ;
  • Suh, Duck-Jong (Center for Advanced Functional Polymers, Department of Chemical Engineering Korea Advanced Institute of Science and Technology) ;
  • Kil, Seung-Bum (Center for Advanced Functional Polymers, Department of Chemical Engineering Korea Advanced Institute of Science and Technology) ;
  • Park, O-Ok (Center for Advanced Functional Polymers, Department of Chemical Engineering Korea Advanced Institute of Science and Technology) ;
  • Yoon, Kwan-Han (Department of Polymer Science and Engineering, Kumoh National University of Technology)
  • Published : 1999.09.01
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Abstract

The effects of the transreactions on the rheological properties have been found in the poly(ethylene 2, 6-naphthalate) (PEN) and poly (ethylene terephthalate) (PET) blends. The rheological properties were very much dependent on the blend compositions, which, in turn, were related to extent of the reactions. In particular, a blend with 50/50 wt% composition exhibits an unusual and remarkable decrease in complex viscosity and it may be related to the randomness of the copolymer structure through transreactions. It has been identified by investigating the extent of transreactions and block length of the copolymer from the (ethylene 2, 6-naphthalate) (EN) and (ethylene terephthalate) (ET) units from $^1{H}$ n.m.r. spectra.

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References

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