| Search / Korean Journal of Chemical Engineering |
Korean Chemical Engineering Research,
Vol.42, No.3, 326-331, 2004
Vol.42, No.3, 326-331, 2004
다양한 촉매에 의한 Poly(ethylene-co-1,4-cyclohexylenedimethylene) Terephthalate Oligomer 형성시 반응기작
Kinetics of the Formation of Poly(ethylene-co-1,4-cyclohexylenedimethylene) Terephthalate Oligomer by Various Catalysts
Dimethyl terephthalate (DMT), ethylene glycol (EG), 1,4-cyclohexane dimethanol (CHDM)을 230 ℃에서 금속촉매 존재하에서 에스테르반응시켜 반응속도를 살펴보았다. 이 때 반응정도에 따라 반응계에서 부산물로 나오는 메탄올량을 측정하여 전환율을 평가하였다. 촉매활성은 촉매농도, 몰비율과 교반속도가 증가할수록 증가하였다. 또한 에스테르반응시 금속촉매별 촉매활성은 Ti > Pb > Zn > Mn > MBTO > Co > Cd > Mg > Li 순이었다.
A kinetic analysis of the esterification of dimethyl terephthalate (DMT) with ethylene glycol (EG) and 1,4-cyclohexane dimethanol (CHDM) was investigated in the presence of various catalysts at 230 ℃. The conversion was followed by the measurement of output of methanol which was distilled from the reactor. The catalytic activity was increased with the increase of molar ratio, agitator speed, and catalyst concentration. Also, the decreasing order in catalytic activity on the esterification was Ti > Pb > Zn > Mn > MBTO > Co > Cd > Mg > Li.
Keywords:
Poly(Ethylene-co-1,4-Cyclohexylenedimethylene) Terephthalate; Heat Shrinkable Tube; Esterification; Catalytic Activity
[References]
- Yoo T, Polym. Sci. Technol., 9(5), 381, 1998
- Park HS, HWAHAK KONGHAK, 33(1), 113, 1995
- Chung SH, Lee JH, Shim JJ, Kim JS, Kim S, HWAHAK KONGHAK, 40(6), 709, 2002
- Yuk HM, Park JH, Park S, Lee CH, HWAHAK KONGHAK, 41(2), 249, 2003
- Hovenkamp SG, J. Polym. Sci., 9, 3617, 1971
- Walker CC, J. Polym. Sci., 21, 623, 1983
- Tomita K, Ida H, Polymer, 16, 185, 1975
- Fontana CM, J. Polym. Sci. A: Polym. Chem., 6, 2343, 1968
- Shah TH, Bhatty JI, Gamlen GA, J. Macromol. Sci.-Chem., 21(4), 431, 1984
- Park SS, Jun HW, Im SS, Polym. Eng. Sci., 38(6), 905, 1998
참고문헌정보(참고문헌, 인용문헌)는 화학공학소재연구정보센터에 의해 제공되고 있습니다.