Some features of the environmentally friendly “phosgene-free” polycarbonate production technology was written by Minigulov, F. G.;Presnyakov, V. V.;Shigabutdinov, A. K.;Safin, D. Kh.;Presnyakov, A. V.;Valitov, A. R.;Safin, A. F.. And the article was included in Plasticheskie Massy in 2020.COA of Formula: C13H10O3 The following contents are mentioned in the article:
Environmental safety of the phosgene-free production of polycarbonate in comparison with the processes based on the use of phosgene was studied. Historical stages of development of this technol. and the main technol. solutions ensuring its effectiveness were reviewed. The advantages of the phosgene-free technol. were demonstrated using the example of Kazanorgsintez PJSC. The main characteristics of the polycarbonates are presented. This study involved multiple reactions and reactants, such as Diphenyl carbonate (cas: 102-09-0COA of Formula: C13H10O3).
Diphenyl carbonate (cas: 102-09-0) belongs to esters. Carboxylic acid esters of low molecular weight are colourless, volatile liquids with pleasant odours, slightly soluble in water. Many esters have the potential for conformational isomerism, but they tend to adopt an s-cis (or Z) conformation rather than the s-trans (or E) alternative, due to a combination of hyperconjugation and dipole minimization effects. The preference for the Z conformation is influenced by the nature of the substituents and solvent, if present. Lactones with small rings are restricted to the s-trans (i.e. E) conformation due to their cyclic structure.COA of Formula: C13H10O3
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics