Journal of the American Chemical Society, Vol.129, No.49, 15116-15116, 2007
Synthesis of sulfur-rich polymers: Copolymerization of episulfide with carbon disulfide by using [PPN]Cl/(salph)Cr(III)Cl system
The completely alternating copolymerization of propylene sulfide with carbon disulfide was first achieved. Copolymerization by using anionic initiator [Ph3P=N=PPh3]Cl gave poly(propylene trithiocarbonate). The addition of chromium complex was found to accelerate the copolymerization. The obtained copolymer has a completely alternating structure with high regioregularity and showed large refractive index of 1.781 similar to 1.782.