Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
674986 | Thermochimica Acta | 2010 | 10 Pages |
Abstract
The effect of molecular weight on thermal characteristics and thermal degradation of poly(ethylene glycol) (PEG) and poly(ethylene oxide)s (PEO) was investigated by differential scanning calorimetry, FT-IR spectroscopy and dynamic thermogravimetry. Kinetic analysis of the non-isothermal degradation was performed using isoconversional (Flynn-Wall-Ozawa, Kissinger-Akahira-Sunose and Friedman) and the invariant kinetic parameters method. The empirical kinetic triplets (E, A, and f(α)) as well as the rate constants have been calculated. The relation between the heating rate, the degradation rate and molecular weight for all investigated samples has been established.
Keywords
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Fluid Flow and Transfer Processes
Authors
NataÅ¡a Stipanelov VrandeÄiÄ, Matko Erceg, MiÄe JakiÄ, Ivka KlariÄ,