Mechanism of H2O2/bleach activators and related factors was written by Liu, Kai;Yan, Kelu;Sun, Gang. And the article was included in Cellulose (Dordrecht, Netherlands) in 2019.HPLC of Formula: 10543-57-4 This article mentions the following:
Abstract: A mechanism of H2O2/bleach activator bleaching systems was proposed by using H2O2/tetraacetylethylenediamine (TAED) system as a model. HO· concentrations of the system under different pH conditions was measured by using benzenepentacarboxylic acid as a fluorescent probe. Computational anal. of bond enthalpies of H2O2 and peracids revealed that HO· should be the most effective agent in bleaching process, and peracids formed in H2O2/bleach activator bleaching systems could more easily produce HO·. The formation of peracids in H2O2/TAED system depends on the pH values of bleaching solutions and a nucleophilic substitution of the acid derivative by peroxide anion (HOO–). Charge d. on carbonyl carbons of bleach activators affects the formation of peracids as well, which was proven from these compounds of TAED, tetraacetylhydrazine, N-[4-(triethylammoniomethyl)-benzoyl]-caprolactam chloride, phthalimide, N-acetylphthalimide and nonanoyloxybenzene sulfonate. It is likely that the charge densities on carbonyl carbon of amide bleach activators should be larger than 0.185. For ester bleach activators, the results were also investigated by activation energy, Gibbs free energy and Hansen solubility parameters. In addition, the ecotoxicity of bleach activators has been evaluated by ECOSAR program. Potential bleach activators can be designed and explored according to these results instead of large amounts of exptl. data. In the experiment, the researchers used many compounds, for example, N,N-(Ethane-1,2-diyl)bis(N-acetylacetamide) (cas: 10543-57-4HPLC of Formula: 10543-57-4).
N,N-(Ethane-1,2-diyl)bis(N-acetylacetamide) (cas: 10543-57-4) belongs to amides. Amides are pervasive in nature and technology. Proteins and important plastics like Nylons, Aramid, Twaron, and Kevlar are polymers whose units are connected by amide groups (polyamides); these linkages are easily formed, confer structural rigidity, and resist hydrolysis. Amides can be freed from solvent or water by drying below their melting points. These purifications can also be used for sulfonamides and acid hydrazides.HPLC of Formula: 10543-57-4
Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics