Non-Arrhenius behavior: Influence of antioxidants on lifetime predictions for materials used in the cable and wire industries was written by Blivet, Camille;Larche, Jean-Francois;Israeli, Yael;Bussiere, Pierre-Olivier. And the article was included in Polymer Degradation and Stability in 2022.Product Details of 6683-19-8 This article mentions the following:
Thermo-oxidation (70-160°) of peroxide crosslinked polyethylene (XLPE) formulations stabilized with different antioxidants were studied. In order to sep. study the influence of three commonly used antioxidants, three formulations were prepared with only one antioxidant each (0.3% weight/weight): a sterically hindered phenolic antioxidant (Irganox 1010), an organosulfur antioxidant (Hostanox SE4) and an oligomeric, sterically hindered amine light stabilizer (HALS 94). The materials were characterized by IR spectroscopy measurements and tensile testing. Results proved that the addition of antioxidants causes in each case an Arrhenius break, occurring at a different temperature depending on the nature of the added antioxidant. Interestingly, the study of the thermo-oxidation (50-105°) of a certified antioxidant-free polyethylene (non-cross-linked) revealed no Arrhenius deviation. In a previous paper, the authors reported an Arrhenius deviation at low temperature (50°) for two crosslinked PE and EPR, containing residual process antioxidants. These results strengthen our hypothesis that several Arrhenius deviations could be explained by the presence of antioxidants (residual process antioxidants or formulation antioxidants), which “activity” is extremely dependent on the temperature In the experiment, the researchers used many compounds, for example, 2,2-Bis(((3-(3,5-di-tert-butyl-4-hydroxyphenyl)propanoyl)oxy)methyl)propane-1,3-diyl bis(3-(3,5-di-tert-butyl-4-hydroxyphenyl)propanoate) (cas: 6683-19-8Product Details of 6683-19-8).
2,2-Bis(((3-(3,5-di-tert-butyl-4-hydroxyphenyl)propanoyl)oxy)methyl)propane-1,3-diyl bis(3-(3,5-di-tert-butyl-4-hydroxyphenyl)propanoate) (cas: 6683-19-8) belongs to esters. Esters are also usually derived from carboxylic acids. It may also be obtained by reaction of acid anhydride or acid halides with alcohols or by the reaction of salts of carboxylic acids with alkyl halides. Because of their lack of hydrogen-bond-donating ability, esters do not self-associate. Consequently, esters are more volatile than carboxylic acids of similar molecular weight.Product Details of 6683-19-8
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics