Abstract
Thermotropic liquid crystalline polymer made up of poly(p-hydroxybenzoate) (PHB)-poly(ethylene terephthalate) (PET) 8/2 copolyester, poly(ethylene 2,6-naphthalate) (PEN) and PET were mechanically blended to pursue the liquid crystalline phase of ternary blends. Complex viscosities of blends decreased with increasing temperature and PHB content. DSC thermal analysis indicated that glass transition temperature (Tg) and melting temperature (Tm) of blends increased with increasing PHB content. Both tensile strength and initial modulus increased with raising PHB content and take-up speed of monofilaments. In the WAXS diagram, only PEN crystal reflection at 2Θ=15.5o appeared but PET crystal reflection was not shown in all compositions. The degree of transesterification and randomness of blends increased with blending time but sequential length of both PEN and PET segment decreased.
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References
M. A. Mcleod and D. G. Baird,J. Appl. Polym. Sci.,73, 2209 (1999).
S. S. Bafna and T. Sun,Polymer,36, 259 (1995).
Y. Wang and D. Wu,J. Appl. Polym. Sci.,66, 1389 (1997).
P. Magaanini and M. S. Tonti,Polym. Eng. Sci.,38, 1572 (1998).
L. Carpaneto and G. Lesage,Polymer,40, 1781 (1999).
J. G. Cook, H. P. W. Hugill, and A. R. Lowe, BP 604073 (1948).
Y. Ulcer and M. Cakmak,Polymer,35(26), 5651 (1994).
S. Buchner, D. Wiswe, and H. G. Zachmann,Polymer,30, 480 (1989).
M. Cakmak, Y. D. Wang, and M. Simhambhatla,Polym. Eng. Sci.,30(12), 721 (1990).
M. Ito, K. Honda, and T. Kanamoto,J. Appl. Polym. Sci.,46, 1013 (1992).
J. Jager, J. A. Juijn, C. J. M. Van Den Heuvel, and R. A. Huijts,J. Appl. Polym. Sci.,57, 1429 (1995).
W. C. Lee and A. T. Dibenedetto,Polymer,34(4), 684 (1993).
H. C. Chin, K. C. Chiou, and F. C. Chang,J. Appl. Polym. Sci.,60, 2503 (1996).
M. Singer, G. P. Simon, R. Varley, and M. R. Nobile,Polym. Eng. Sci.,36(8), 1038 (1996).
K. H. Wei, W. J. Hwang, and H. L. Tyan,Polymer,37(11), 2087 (1996).
K. Yoshikai, K. Nakayama, and M. Kyotani,J. Appl. Polym. Sci.,62, 1331 (1996).
S. H. Kim, S. W. Park, and E. S. Gil,J. Appl. Polym. Sci.,67(8), 1383 (1998).
D. Chen and H. G. Zachmann,Polymer,32(9), 1612 (1991).
F. J. Balta-Calleja, C. Santa-Cruz, D. Chen, and H. G. Zachmann,Polymer,32(12), 2252 (1991).
S. Spies and H. G. Zachmann,Polymer,35(18), 3816 (1994).
O. Ahumada, T. A. Ezquerra, A. Nogales, F. J. Balta-Calleja, and H. G. Zachmann,Macromolecules,29(14), 5003 (1996).
J. Economy, B. E. Nowak, and S. G. Cottis,SAMPE J.,6(6), 21 (1970).
R. Yamadera and M. Murano,J. Appl. Polym. Sci.,5, 2259 (1967).
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Kim, S.H., Kang, S.W. Studies on the ternary blends of liquid crystalline polymer and polyesters. Fibers Polym 1, 83–91 (2000). https://doi.org/10.1007/BF02875190
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DOI: https://doi.org/10.1007/BF02875190