Kamoo bisphenol A e arabelang kateng le phosgene ho lokisa polycarbonate
bisphenol A bpa Karabelo le Phosgene — Tokisetso ea Polycarbonate
Karabelo ea bisphenol A BPA ka phosgene ke mohato oa bohlokoa ho lokiseng polycarbonate. Karabelong ena, athomo ea carbonyl carbon ho phosgene e na le electrophilicity e matla, 'me athomo ea phenolic hydroxyl oxygen ea bisphenol A e sebetsa e le setsi sa nucleophilic ho e hlasela, e etsa sehlahisoa se mahareng. Ebe, sehlahisoa se mahareng se lahleheloa ke molek'hule e le 'ngoe ea hydrogen chloride 'me se tsoela pele ho arabela le limolek'hule tse ling tsa bisphenol A BPA le phosgene, butle-butle li etsa polymerize ho theha polycarbonate. Karabelo ena hangata e etsoa ka har'a solvent ea organic, 'me moemeli ea tlamang asiti o hloka ho eketsoa ho monya hydrogen chloride e hlahisoang ke karabelo ho khothaletsa karabelo ho tsoela pele ka tsela e ntle. Maemo a fapaneng a karabelo, joalo ka mofuta oa solvent ea karabelo, khetho ea moemeli ea tlamang asiti, le nako ea karabelo, kaofela li tla ama boleng le ts'ebetso ea polycarbonate. Mohlala, ho khetha solvent e loketseng ea organic ho ka ntlafatsa ho qhibiliha ha li-reactants le ho etsa hore karabelo e tsoele pele ka mokhoa o ts'oanang haholoanyane; Sehlahisoa se loketseng se tlamang asiti se ka monya hydrogen chloride ka katleho, sa boloka asiti le alkalinity ea sistimi ea karabelo, 'me sa netefatsa tsoelo-pele e boreleli ea karabelo.