Fullerene C60 as an inhibitor of high temperature lipid oxidation

Fullerene C60 Derivatives as High-Temperature Inhibitors of Oxidative Degradation of Saturated Hydrocarbons

“…This effect may be caused by high volatility of phenols. Pristine fullerene C 60 causes an increase of activation energy and pre-exponential factor and a decrease of oxidation rate constants, in good agreement with our previous results . When STA contains C 60 with pyrrolidine ring only ( C60-Py ), the parameters E a , Z are lower than for pure STA.…”

“…Unfortunately, poor solubility in almost all solvents is a major barrier limiting the applicability of C 60 ; there are a few reports concerning solubility of fullerenes in lipids (for example, 909 mg/L for olive oil), − and in order to increase their solubility, some polar groups have to be attached. , The carbon sphere can be a good starting structure for design and development of new radical-scavenging compounds with specific functionalities. Thermally stable (up to 600 °C) C 60 molecule can trap several radicals − and can potentially be used as protective substance against reactive oxygen species, ROS. , There are several reports concerning potential antioxidant activity of C 60 . − Our previous work described the antioxidant behavior of C 60 during the autoxidation of stearic acid (STA) over a wide range of temperatures, as a noncorrosive agent for effectively increasing the oxidative stability of lubricants . There is some experimental evidence that fullerene derivatives might also be active antioxidants.…”

“…27−29 Our previous work described the antioxidant behavior of C 60 during the autoxidation of stearic acid (STA) over a wide range of temperatures, as a noncorrosive agent for effectively increasing the oxidative stability of lubricants. 30 There is some experimental evidence that fullerene derivatives might also be active antioxidants. C 60 with attached amine group exhibits higher efficiency than conventional antioxidants during autoxidation of cumene.…”

Antioxidant Activity of Metal Nanoparticles Coated with Tocopherol-Like Residues—The Importance of Studies in Homo- and Heterogeneous Systems

“…More examples of antioxidants supported by nanoparticles have been described in a recent review [31]. Our previous projects were focused on the antioxidant activity of phenolic antioxidants covalently bonded to fullerene [32][33][34], as we noticed that pristine C 60 inhibits high-temperature autoxidation of saturated hydrocarbons [35]. We noticed that the C 60 derivative with covalently bonded hydroxychromanyl moiety (an analogue of α-tocopherol) is an effective antioxidant acting at temperatures above 120 • C during non-isothermal oxidative decomposition of saturated hydrocarbons [34].…”

Fullerene C60 conjugated with phenols as new hybrid antioxidants to improve the oxidative stability of polymers at elevated temperatures

“…We described the antioxidant behaviour of C 60 during the autoxidation of stearic acid (STA) over a wide range of temperatures, as a non-corrosive agent effectively increasing the oxidative stability of lubricants. 21 For high temperature oxidation of STA, the phenolic conjugates of C 60 are more active antioxidants than the pristine C 60 and phenols used alone. 22 This lead us to hypothesis that conjugates of C 60 with phenols are good candidates for hybrid antioxidants to be used in polymers at temperatures above 100 C. Herein we present experimental study in which kinetic parameters of thermo-oxidation of pure high density polyethylene (HDPE) were determined and compared with kinetic parameters of HDPE containing pristine fullerene C 60 and C 60 adducts with four phenols I-IV (see Chart 1) at concentration 0.065-1%.…”