Thermo-oxidative evaluation of new cardol derivatives as antioxidants for mineral oils

• Published in: Journal of thermal analysis and calorimetry Vol. 109; no. 2; pp. 1013 - 1018
• Main Authors: Maia, Francisco J. N., Ribeiro, Viviane G., Clemente, Claudenilson S., Lomonaco, Diego, Vasconcelos, Pedro H. M., Mazzetto, Selma E.
• Format: Journal Article
• Language: English
• Published: Dordrecht Springer Netherlands 01-08-2012; Springer
• Subjects: Analytical Chemistry; Antioxidants; Applied sciences; Chemical industry and chemicals; Chemistry; Chemistry and Materials Science; Exact sciences and technology; Industrial chemicals; Inorganic Chemistry; Measurement Science and Instrumentation; Physical Chemistry; Polymer Sciences; Antioxidant; Cardol; Cashew nutshell liquid; Thermogravimetry; Naphthenic oil; Resorcinol derivatives; Thermooxidative degradation; Vegetal by product; Mineral oil; Thermal analysis; Cashew nut; Phosphorus Organic compounds
• ISSN: 1388-6150; 1588-2926; 1572-8943
• DOI: 10.1007/s10973-011-1870-5

In this study, the thermo-oxidative stability of two new phosphorylated derivatives of cardol, a compound from the cashew (
Anacardium occidentale
L.) industry waste CNSL (cashew nutshell liquid), were evaluated. The antioxidant capacity of these new molecules upon two mineral oils, NH10 and NH20 were also studied by thermogravimetric analysis (TG/DTG), observing the onset and offset temperatures variation. The results showed that both MP and DP Cardol increased considerably the onset and offset temperatures of NH10 and NH20 oils.