Synthesis and Characterization of Poly(1,4-cyclohexanedimethylene/ethylene terephthalate)

Poly(1,4-cyclohexanedimethylene/ethylene terephthalate)의 합성 및 물성

  • Cho, In-Ho (Department of Chemistry, The Graduate School, Chonbuk Natl. Univ.) ;
  • Rhee, Jong M. (Department of Textile Eng., College of Eng., Chonbuk Natl. Univ.) ;
  • Lee, Jong-Shin (R & D Center, Samyangsa Ltd., Chonju)
  • Published : 1991.09.01

Abstract

Poly(1, 4-cyclohexanedimethylene/ethylene terephthalate), PCET was prepared by condensing 1, 4-cyclohexanedimethanol(CHDM) and ethylene glycol with dimethylterephthalate(DMT), and some thermal properties of PCET were studied by DSC at a heating rate $20^{\circ}C$min. On increasing the CHDM content in PCET up to 20 mole%/DMT, the glass transition temperature(Tg) decreased a little and the crystallizability reduced sharply, and from 20 to 50 mole %/DMT the $T_g$ did not changed and the crystallization temperature was not detected. But on increasing the CHDM content above 70 mole %/DMT the TEX>$T_g$/ and the melting temperature increased.

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