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Article

Accelerated and Natural Aging of Cellulose-Based Paper: Py-GC/MS Method

1
Department of Organic Technology, Catalysis and Petroleum Chemistry, Faculty of Chemical and Food Technology, Slovak University of Technology in Bratislava, Bratislava I, 81237 Bratislava, Slovakia
2
Department of Wood, Pulp and Paper at the Institute of Natural and Synthetic Polymers, Faculty of Chemical and Food Technology, Slovak University of Technology in Bratislava, 81107 Bratislava, Slovakia
*
Author to whom correspondence should be addressed.
Academic Editor: José A. González-Pérez
Molecules 2022, 27(9), 2855; https://doi.org/10.3390/molecules27092855
Received: 2 March 2022 / Revised: 25 April 2022 / Accepted: 28 April 2022 / Published: 30 April 2022
Samples of papers artificially (2 to 60 days) and naturally (10, 45, and 56 years) aged were studied by the Py-GC/MS method to identify decomposition products. Possible reaction scenarios for cellulose degradation were developed. One of the degradation products is acetic acid, which can (auto)catalyze the cleavage of cellulose β(1→4)-glycosidic bonds of cellulose polymer chains. However, during 20 s of Py-GC/MS analysis, temperatures of up to 300 °C did not significantly increase or modify the formation of decomposition products of paper components. At 300 °C, the amount of several cellulose decomposition products increased regularly depending on the number of days of artificial aging and natural aging, demonstrated mainly by the generation of 2-furancarboxaldehyde, 5-hydroxymethylfurfural, and levoglucosan and its consecutive dehydration products. No correlation between the amount of lignin decomposition products and the time of aging was found when the pyrolysis was performed at 300 °C and 500 °C. Compounds present in the products of decomposition at 500 °C bear the imprint of the chemical composition of the sampled paper. Pyrograms taken at 300 °C using the Py-GC/MS method can give additional information on the changes in the chemical structure of paper during natural or artificial aging, mainly about the cleavage of β(1→4)-glycosidic bonds during aging. View Full-Text
Keywords: paper aging; Py-GC/MS; pyrogram; levoglucosan; levoglucosenone; furfural; acetic acid paper aging; Py-GC/MS; pyrogram; levoglucosan; levoglucosenone; furfural; acetic acid
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MDPI and ACS Style

Kaszonyi, A.; Izsák, L.; Králik, M.; Jablonsky, M. Accelerated and Natural Aging of Cellulose-Based Paper: Py-GC/MS Method. Molecules 2022, 27, 2855. https://doi.org/10.3390/molecules27092855

AMA Style

Kaszonyi A, Izsák L, Králik M, Jablonsky M. Accelerated and Natural Aging of Cellulose-Based Paper: Py-GC/MS Method. Molecules. 2022; 27(9):2855. https://doi.org/10.3390/molecules27092855

Chicago/Turabian Style

Kaszonyi, Alexander, Lívia Izsák, Milan Králik, and Michal Jablonsky. 2022. "Accelerated and Natural Aging of Cellulose-Based Paper: Py-GC/MS Method" Molecules 27, no. 9: 2855. https://doi.org/10.3390/molecules27092855

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