Influence of acrylonitrile butadiene elastomer as polymeric co-agent for crosslinking poly(vinyl chloride) by gamma radiation was written by Gupta, Neeraj K.;Gupta, Shivani;Tedesse, Aschalew. And the article was included in Journal of Polymer Research in 2022.Name: 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) This article mentions the following:
Plasticized filled poly(vinyl chloride) (PVC) blends incorporating acrylonitrile-butadiene rubber (NBR) as an elastomeric crosslinking co-agent were subjected to gamma radiation by a Co60 source for total doses 25 to 100 kGy. Changes in total insoluble contents, physicomech. properties (before and after thermal aging), morphol., spectroscopy, and dynamic mech. behavior as a function of NBR loading and total dose were investigated. An increase in total insoluble contents with both NBR loading and total dose indicates that within the parameters of the study, the blends underwent crosslinking as the predominant effect with an increase of hardness. Unaged mech. properties (tensile strength, Young’s modulus, and elongation at break) of the blends were significantly modified. These same properties, after aging at 90°C, 168 h are again modified due to further crosslinking reactions above the glass transition temperatures The obtained results indicate that there exists a loading range for NBR for which an optimal combination of room temperature and aged mech. properties may be obtained. Abrasion resistance of the blends improves due to the formation of chem. bonded networks. The mechanism of the crosslinking reaction was elucidated by Fourier transform IR spectroscopy. Electron scanning microscopy shows single-phase blend morphologies for all blends and reveals a reduction in matrix ductility on crosslinking. Dynamic mech. anal. conducted to study the change in loss tangent, storage modulus, and loss modulus at 100 kGy total dose shows an increase in these parameters and that the modification of physicomech. properties are due to both crosslinking as well as enhanced interaction between PVC and NBR. 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: 6683-19-8Name: 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)).
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. Volatile esters with characteristic odours are used in synthetic flavours, perfumes, and cosmetics. Certain volatile esters are used as solvents for lacquers, paints, and varnishes. Acyl chlorides and acid anhydrides alcoholysis is another way to produce esters. Acyl chlorides and acid anhydrides react with alcohols to produce esters. Anydrous conditions are recommended since both acyl chlorides and acid anhydrides react with water.Name: 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)
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics