Ndlela leyi bisphenol A yi endlaka ha yona na phosgene ku lulamisa polycarbonate

Bisphenol ya A Ku Angula ka BPA na Phosgene — Ku lulamisiwa ka Polycarbonate
Ku cinca ka bisphenol A BPA na phosgene i goza ra nkoka eka ku lulamisiwa ka polycarbonate. Eka nhlamulo leyi, athomo ya carbonyl carbon eka phosgene yina electrophilicity yo tiya, naswona phenolic hydroxyl oxygen atom ya bisphenol A yitirha tani hi nucleophilic center kuva yi hlasela, yi endla xitirhisiwa xale xikarhi. Kutani, xiendliwa xale xikarhi xi lahlekeriwa hi molecule yin’we ya hydrogen chloride naswona xiya emahlweni xi endla reaction na ti molecule tin’wana ta bisphenol A BPA na phosgene, hakatsongotsongo xi polymerizing kuva xi endla polycarbonate. Ku cinca loku kutala ku endliwa eka organic solvent, naswona acid-binding agent yilava ku cheriwa kuva yi tswonga hydrogen chloride leyi endliwaka hi reaction kuva yi hlohletela reaction kuva yiya emahlweni eka tlhelo ra kahle. Swiyimo swohambana hambana swa reaction, kufana na muxaka wa reaction solvent, ku hlawuriwa ka acid-binding agent, na nkarhi wa reaction, hinkwaswo swita khumba khwalithi na matirhelo ya polycarbonate. Xikombiso, ku hlawula organic solvent leyi faneleke swinga antswisa ku n’oka ka ti reactants naswona swiendla leswaku reaction yi famba hindlela leyi fanaka; xitirhisiwa lexi faneleke xo boha acid xinga tswonga hydrogen chloride hindlela leyinene, xi hlayisa acid na alkalinity ya sisiteme ya reaction, naku tiyisisa nhluvuko lowu rhetaka wa reaction.