Te tauhohenga a te bisphenol A ki te phosgene hei hanga polycarbonate

bisphenol A bpa Tauhohenga ki te Phosgene — Te Whakaritenga o te Polycarbonate
Ko te tauhohenga o te bisphenol A BPA ki te phosgene he taahiraa matua i roto i te whakarite i te polycarbonate. I roto i tēnei tauhohenga, he kaha te electrophilicity o te ngota waro carbonyl i roto i te phosgene, ā, ko te ngota hāora hydroxyl phenolic o te bisphenol A e mahi ana hei pokapū nucleophilic hei whakaeke i a ia, ka hanga he hua takawaenga. Kātahi ka ngaro i te hua takawaenga tetahi ngota o te hauwai pūhaumāota, ā, ka haere tonu te tauhohenga ki ētahi atu ngota bisphenol A BPA me te phosgene, ka āta whakakotahi hei hanga polycarbonate. Ko te tikanga o tēnei tauhohenga ka mahia i roto i te whakarewa waro, ā, me tāpiri he kaihoko here-waikawa hei mimiti i te hauwai pūhaumāota i hangaia e te tauhohenga hei whakatairanga i te tauhohenga kia haere tonu i te huarahi pai. Ko ngā āhuatanga tauhohenga rerekē, pērā i te momo whakarewa tauhohenga, te kōwhiringa o te kaihoko here-waikawa, me te wā tauhohenga, ka pā katoa ki te kounga me te mahi a te polycarbonate. Hei tauira, ko te whiriwhiri i tētahi whakarewa waro e tika ana ka taea te whakapai ake i te wairewatanga o ngā matū tauhohenga me te whakarite kia haere tonu te tauhohenga; Ka taea e te kaihopu here waikawa e tika ana te mimiti i te hauwai pūhaumāota, te pupuri i te waikawa me te kawakore o te pūnaha tauhohenga, me te whakarite kia maeneene te ahunga whakamua o te tauhohenga.