Ishchenko, S. S. published the artcileCatalysis by copper β-diketonates of the formation of polyurethanes based on polypropylene glycol, Category: copper-catalyst, the publication is Ukrainskii Khimicheskii Zhurnal (Russian Edition) (1985), 51(11), 1219-22, database is CAplus.
The kinetics of polymerization of MDI [101-68-8] with polypropylene glycol (I) [25322-69-4] in the presence of CuL2 (L = β-diketone) catalyst depended on the structure of the β-diketone ligand in the catalyst, the mol. weight of I, and the state of I in solution The polymerization rate constant decreased with increasing mol. weight of I due to a decrease in the concentration of active forms, i.e., intermol. associates of OH groups, and an increase in the nonactive forms, i.e., ether O atoms. The catalysts decreased in activity in the ligand order: dipivaloylmethane > Et acetoacetate > benzoylacetone > acetylacetone > trifluoroacetylacetone > hexafluoroacetylacetone.
Ukrainskii Khimicheskii Zhurnal (Russian Edition) published new progress about 14284-06-1. 14284-06-1 belongs to copper-catalyst, auxiliary class Copper, name is Copper(II) ethylacetoacetate, and the molecular formula is 0, Category: copper-catalyst.
Referemce:
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4660968/,
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”