화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Korea-Australia Rheology Journal, Vol.11, No.3, 219-223, September, 1999
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Rheological anomalies of the poly(ethylene 2, 6-naphthalate) and poly(ethylene terephthalate) blends depending on the compositions
Hyang Mok Lee, Duck Jong Suh1, Seung Bum Kil1, O Ok Park1, †, and Kwan Han Yoon2
  • Research Park, LG Chem., P.O.Box 61, Yusong,Taejon 305-380, Korea
  • 1Center for Advanced Functional Polymers, Department of Chemical Engineering, Korea Advanced Institute of Science and Technology, 373-1, Kusong-dongYusong-gu, Taejon 305-701, Korea
  • 2Department of Polymer Science and Engineering, Kumoh National University of Technology, 188 Shinpyung-dong, Kumi, Kyungbuk, 730-701, Korea
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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.
Keywords:transreaction;rheological properties;complex viscosity;poly(ethylene 2;6-naphthalate);poly(ethylene terephthalate);block length
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