Qhov tshuaj tiv thaiv ntawm bisphenol A thiab phosgene yog ib kauj ruam tseem ceeb hauv kev npaj polycarbonate.

bisphenol A bpa Kev sib xyaw nrog Phosgene - Kev npaj ntawm Polycarbonate
Qhov kev sib xyaw ntawm bisphenol A BPA nrog phosgene yog ib kauj ruam tseem ceeb hauv kev npaj polycarbonate. Hauv qhov kev sib xyaw no, cov carbonyl carbon atom hauv phosgene muaj zog electrophilicity, thiab cov phenolic hydroxyl oxygen atom ntawm bisphenol A ua haujlwm ua lub hauv paus nucleophilic los tawm tsam nws, tsim cov khoom nruab nrab. Tom qab ntawd, cov khoom nruab nrab poob ib lub molecule ntawm hydrogen chloride thiab txuas ntxiv mus sib xyaw nrog lwm cov bisphenol A BPA molecules thiab phosgene, maj mam polymerizing los tsim polycarbonate. Qhov kev sib xyaw no feem ntau yog ua tiav hauv cov organic solvent, thiab tus neeg sawv cev acid-binding yuav tsum tau ntxiv los nqus cov hydrogen chloride tsim los ntawm qhov kev sib xyaw kom txhawb nqa qhov kev sib xyaw kom mus rau hauv qhov kev coj zoo. Cov xwm txheej sib txawv, xws li hom tshuaj sib xyaw, kev xaiv cov neeg sawv cev acid-binding, thiab lub sijhawm sib xyaw, yuav cuam tshuam rau qhov zoo thiab kev ua tau zoo ntawm polycarbonate. Piv txwv li, kev xaiv cov organic solvent tsim nyog tuaj yeem txhim kho qhov solubility ntawm reactants thiab ua rau qhov kev sib xyaw ua ke ntau dua; ib tus neeg sawv cev khi kua qaub tsim nyog tuaj yeem nqus tau hydrogen chloride zoo, tswj cov acidity thiab alkalinity ntawm lub cev tshuaj tiv thaiv, thiab xyuas kom meej tias kev nce qib ntawm cov tshuaj tiv thaiv.