Polymer, Vol.36, No.1, 209-215, 1995
Synthesis and Properties of 2,2’-Dibromobisphenol-A Polycarbonate
The synthesis and properties of 2,2’-dibromobisphenol A polycarbonate (2,2’-DBBA PC) were studied. The monomer, 2,2’-DBBA, was selectively prepared by the direct bromination of bisphenol A in dichloromethane with an inert gas purge. High molecular weight 2,2’-DBBA PC was prepared by interfacial phosgenation of the monomer followed by coupling of the resulting oligomers catalysed by 4-N,N-dimethylaminopyridine. The thermal, tensile, flexural and impact properties of 2,2’-DBBA PC were determined and compared to those of bisphenol A PC, and 1:1 bisphenol A-tetrabromobisphenol A copolycarbonate.)