Infrared characterization of MgCl2 supported Ziegler-Natta catalysts with monoester and diester as a modifier was written by Yang, C. B.;Hsu, C. C.;Park, Y. S.;Shurvell, H. F.. And the article was included in European Polymer Journal in 1994.Application In Synthesis of 2-Ethylhexyl benzoate The following contents are mentioned in the article:
An IR study of MgCl2-supported TiCl4 Ziegler-Natta catalysts for propylene polymerization using Lewis base modifiers was carried out. Two series of catalysts were prepared, differing mainly by the method used to prepare the MgCl2 support. One was prepared by precipitation and the other by ball-milling. Four different Lewis bases, of which two are diesters (di-2-Et phthalate and diisobutyl phthalate) and two are monoesters (Et benzoate and 2-Et hexyl benzoate), were employed. The IR investigation of the catalyst was focused on the identification of complexes formed. The diester-containing catalysts contain significant amounts of TiCl4-diester complexes and phthaloyl mono- and di-chlorides complexed to MgCl2, whereas the monoester-containing catalysts are virtually free of these compounds The chlorides are formed from the reaction of TiCl4 and diester weakly bonded to MgCl2. The TiCl4-monoester complex is relatively weak so that the coordination of monoester with MgCl2 is much more favorable. The effects of the complexes, particularly their relative amounts, on the catalyst activity was investigated by carrying out propylene polymerizations with catalysts prepared by precipitation and by ball-milling method at three different activation temperatures This study involved multiple reactions and reactants, such as 2-Ethylhexyl benzoate (cas: 5444-75-7Application In Synthesis of 2-Ethylhexyl benzoate).
2-Ethylhexyl benzoate (cas: 5444-75-7) 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. Esterification is the general name for a chemical reaction in which two reactants (typically an alcohol and an acid) form an ester as the reaction product. Esters are common in organic chemistry and biological materials.Application In Synthesis of 2-Ethylhexyl benzoate
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics