The kinetic rate and temperature dependence of transesterification of 2,6-DMN with ethylene glycol was investigated in the presence of various catalysts under a given temperature ranging from 190 to 250℃. The degree of reaction was determined by the measurement of output of methanol which was distilled from the reactor. As was established earlier, the reactivity of metal compound (e.g. Zn⁺⁺, Pb⁺⁺ etc.) known as a weak-base was found to be constantly increased as the concentration of catalysts and temperature was increased. The rate constant was divided into initial and total rate constant for a satisfactory kinetic evaluation. And also, Activation energy of Zn⁺⁺ in 2,6-PEN was as about 2 times as better than that of Zn⁺⁺ in PET.

Dimethyl 2,6-naphthalate(2,6-DMN)과 Ethylene glycol을 190∼250℃ 사이의 일정온도에서 촉매별로 에스테르교환반응시켜 반응속도와 온도의존성을 살펴보았다. 이때 반응성도에 따라 반응계에서 부산물로 유출되어 나오는 메탄올의 양을 측정하여 반응도를 측정하였다. 이 전의 결과와 마찬가지로, Zn⁺⁺, Pb⁺⁺ 등의 약염기성 금속화합물의 반응도는 촉매농도 뿐만 아니라 온도상승에도 지속적으로 증가하였다. 만족스러운 속도론적인 처리를 하기 위해서는 속도상수를 초기속도 상수와 전체속도상수로 분류하는 것이 타당하였다. 2,6-PEN에서 Zn⁺⁺의 활성화에너지값을 PET의 활성화에너지값과 비교하여 2배정도 높음을 알았다.

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