http://www.ewp.rpi.edu/hartford/~ernesto/F2012/EP/MaterialsforStudents/Patel/Beyler_Hirschler_SFPE_Handbook_3.pdf
http://www.tainstruments.co.jp/application/pdf/Thermal_Library/Applications_Briefs/TA125.PDF
http://www.greenenergy.fcu.edu.tw/wSite/publicfile/Attachment/f1381221459937.pdf
http://www.ijcea.org/papers/372-L3009.pdf
http://www.jmaterenvironsci.com/Document/vol3/vol3_N6/104-JMES-299-2012-Victor.pdf
http://www.jmaterenvironsci.com/Document/vol5/vol5_N5/165-JMES-1029-2014-Arshad.pdf
http://www.doiserbia.nb.rs/img/doi/0354-9836/2014/0354-98361403833A.pdf
http://www.jeaconf.org/uploadedfiles/document/c8f7e910-6773-42b8-ac46-2471331e783a.pdf
http://www.jmaterenvironsci.com/Document/vol5/vol5_N4/156-JMES-877-2014-Benarbia.pdf
http://www.kirj.ee/public/oilshale_pdf/2008/issue_4/oil-2008-4-426-443.pdf
http://www.ufrgs.br/lapol/thermal_decomposition_of_wood.pdf
And finally a full PhD thesis with detailed information: http://uknowledge.uky.edu/cgi/viewcontent.cgi?article=1036&context=me_etds
The data that is missing from only TGA in degradation analysis studies is that degradation kinetics always is function of the specific degradation end products that result in during degradation. NH3, CO2, H2O, for example each can be produced at different rates. Water is produced whenever a double bond forms which results in a loss of weight. If one knows the chemistry of the breakdown, which breakdown products form at which rates over which periods of time cannot be independent of the TGA results. Need to disentangle the different threads into their individual components.
Walter.
c.f.
Modelling the thermal decompositions of wood and leaves under a nitrogen atmosphere DOI: 10.1002/(SICI)1099-1018(1998050)22:33.0.CO;2-G
If you are interested in the semi-quantitative description of the process only, the answer is positive. The best is to combine isothermal and scanned TGA and DSC data in both inert and in oxidative atmospheres. It gives a fairly good picture. if you are interested in the mecahnis, you should use hyphenated methods as evolved gas analysis by IR or MS or pyrolysis gas chromatography combined with MS.
Well said. The context we see something from set boundaries on what we can see. As a spectroscopist, decomposition means something different than it means to a process engineer. For example, denaturing a protein is an irreversible process that may or may not be interpreted as decomposition. Easily detected in IR or Raman spectra and may or may not result in the loss of mass. Water / moisture loss can be simply drying which is not decomposition, can be removing bound water destabilizing organic molecular sites or can be the chemical dehydration reaction CH2-CHOH -> CH=CH + H20 which may or may not be called degradation. No CO2 or NH3 or other gases are produced by such reactions. Pyrolysis is more complicated chemistry. Is molecular rearrangement decomposition? Chemistry is happening. What one is measuring may or may not be what one thinks one is measuring. . . One however is stuck with the stoichiometry: the same number of C H O N S etc one starts with must be exactly equal the number one ends up with. Sometimes the accounting is semi-quantitative.
@ Schmidt and @ Banhageyi
Thanks for your answers, however, I am thinking of a conventional approach I can lay my hands on e.g. Flynn approach, ratio approach, Kissinger approach, etc. I would really appreciate further suggestions or preferably reference articles.
http://www.ewp.rpi.edu/hartford/~ernesto/F2012/EP/MaterialsforStudents/Patel/Beyler_Hirschler_SFPE_Handbook_3.pdf
http://www.tainstruments.co.jp/application/pdf/Thermal_Library/Applications_Briefs/TA125.PDF
http://www.greenenergy.fcu.edu.tw/wSite/publicfile/Attachment/f1381221459937.pdf
http://www.ijcea.org/papers/372-L3009.pdf
http://www.jmaterenvironsci.com/Document/vol3/vol3_N6/104-JMES-299-2012-Victor.pdf
http://www.jmaterenvironsci.com/Document/vol5/vol5_N5/165-JMES-1029-2014-Arshad.pdf
http://www.doiserbia.nb.rs/img/doi/0354-9836/2014/0354-98361403833A.pdf
http://www.jeaconf.org/uploadedfiles/document/c8f7e910-6773-42b8-ac46-2471331e783a.pdf
http://www.jmaterenvironsci.com/Document/vol5/vol5_N4/156-JMES-877-2014-Benarbia.pdf
http://www.kirj.ee/public/oilshale_pdf/2008/issue_4/oil-2008-4-426-443.pdf
http://www.ufrgs.br/lapol/thermal_decomposition_of_wood.pdf
And finally a full PhD thesis with detailed information: http://uknowledge.uky.edu/cgi/viewcontent.cgi?article=1036&context=me_etds
@ Banhegyi
Thank you very much, the articles are very helpful, as a matter of fact the PhD thesis is the jewel in the crown.
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