A polycarbonate resin with a polystyrene -converted weight average molecular weight (Mw) of 20,000 to 200,000 obtained by forming a carbonate bond from a dihydroxy compound represented by the general formula (1), a dihydroxy compound represented by the general formula (2) and bis(hydroxyphenyl) methane and a carbonic acid diester or phosgene, having higher stiffness and better balance of mechanical properties than conventional aromatic polycarbonate resin to be derived from 2,2-bis(4-hydroxyphenyl)propane.
Eco-friendly Solvent-free Route to Alkyl- and Aryl-Bisphenols Catalyzed by Perchloric Acid-Silica
作者:Deepak Singh、Pradeep T. Deota
DOI:10.1080/00304948.2020.1762459
日期:2020.7.3
Bisphenols, generally formed by condensation of phenols with carbonyl compounds, have found several useful applications. 1–7 The literature records a number of methods for synthesis of bisphenols u...