Degradation Kinetics of Polycarbonate in Supercritical Methanol

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN

Seong-Yeol Bae²  Sea Cheon Oh¹  Hee-Yong Shin² 

[1] Department of Environmental Engineering, Kongju National University;Department of Chemical Engineering, Hanyang University

关键词: Kinetic Analysis;    Supercritical Methanol;    Degradation;    Polycarbonate;   

DOI  :  10.1252/jcej.09we012

来源: Maruzen Company Ltd

【 摘 要 】

References(13)Cited-By(1)A kinetic analysis method using the nonisothermal weight loss technique is proposed to conveniently determine the kinetic parameters of degradation of polycarbonate (PC) in supercritical methanol. Experiments have been carried out for three heating rates of 8, 10.5 and 13°C/min. The slope of a straight line plot for a function of the weight fraction vs. the temperature gives the activation energy of PC degradation in supercritical methanol. In addition, the weight fraction at which the inflection occurs in the weight loss curve determines the reaction order. From this work, it has been found that the activation energies of PC degradation in supercritical methanol are 386.5–501.9 kJ/mol. Further, it has also been found that the reaction orders are 1.79–2.89 and there are variations in the calculated kinetic parameters depending on the heating rate.

【 授权许可】

Unknown