کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5204246 1381954 2007 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Kinetics of the degradation of polystyrene in supercritical acetone
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
پیش نمایش صفحه اول مقاله
Kinetics of the degradation of polystyrene in supercritical acetone
چکیده انگلیسی

The kinetic analysis of the degradation of polystyrene (PS) in supercritical acetone has been studied using the nonisothermal weight loss technique with heating rates of 3, 5 and 7 °C/min. The weight loss data according to degradation temperature have been analyzed using the integral method based on Arrhenius form to obtain the kinetic parameters such as apparent activation energy and overall reaction order. The kinetic parameters obtained from this work were also compared with those of the thermal degradation of PS in nitrogen atmosphere. From this work, it was found that the activation energies of PS degradation in supercritical acetone were 73.3-200.7 kJ/mol and lower than those of the thermal degradation in nitrogen atmosphere.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Polymer Degradation and Stability - Volume 92, Issue 8, August 2007, Pages 1622-1625
نویسندگان
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