Thermal degradation of DNA, an all-in-one natural intumescent flame retardant

Alongi, J., Di Blasio, A., Milnes, G. John, Mallalieu, G., Bourbigot, Serge, Kandola, Baljinder K. ORCID: 0000-0002-3621-3724 and Camino, G. (2015) Thermal degradation of DNA, an all-in-one natural intumescent flame retardant. Polymer Degradation and Stability, 113. pp. 110-118. ISSN 0141-3910

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Very recently, deoxyribonucleic acid (DNA) has proven to be an efficient renewable, natural flame suppressant and retardant, due to its intrinsic intumescent features. In our previous work we have explored its flame retardant activity by applying as a surface coating on cotton fabrics and observed that on exposure to heat, the DNA was able to form a foamed char on the surface of the fabric. These remarkable results have stimulated this study on in-depth understanding of mechanism of thermal degradation of DNA. A number of characterization techniques have been exploited to investigate DNA decomposition, namely: thermogravimetry coupled to infrared spectroscopy or combined with differential thermal analysis, pyrolysis-combustion flow calorimetry and analysis of degradation residues. A scheme of DNA degradation mechanism is proposed to account for the results of the study.

Item Type: Article
Uncontrolled Keywords: Thermal degradation, TGA, TGA-IR, Pyrolysis-Combustion Flow Calorimeter,Intumescent flame retardants
Divisions: School of Engineering > Engineering
University of Bolton Research Centres > Institute for Materials Research and Innovation
Depositing User: Tracey Gill
Date Deposited: 22 Mar 2018 08:55
Last Modified: 22 Mar 2018 08:55
Identification Number: 10.1016/j.polymdegradstab.2014.11.001

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