다양한 촉매에 의한 Poly(ethylene-co-1,4-cyclohexylenedimethylene) Terephthalate Oligomer 형성시 반응기작

박상순; 최중소; Sang Soon Park; Joong So Choi

Korean Chemical Engineering Research, Vol.42, No.3, 326-331, June, 2004

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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

박상순, 최중소 ^†

광운대학교 공과대학 화학공학과, 139-701 서울시 노원구 월계동 447-1

Sang Soon Park, and Joong So Choi^†

Department of Chemical Engineering, Kwangwoon University, 447-1, Wolgye-dong, Nowon-gu, Seoul 139-701, Korea

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초록

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

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