6Goyal M, Nagahata R, Sugiyama J, et al. Direct synthesis of aromatic polycarbonate from polymerization of bisphenol A with CO using a Pd-Cu catalyst system [ J ]. Polymer, 1999,40( 11 ) :3237-3241.
7Goyal M, Nagahata R, Su Yama J,et al. Pd Catalyzed pol- ycarbonate synthesis from bisphenol A and CO:Control of polymer chain-end structure [ J ]. Polymer, 2000,41 ( 6 ) : 2289-2293.