writer：Wang Zichuan, Liu Dongtao, Cui Dongmei*
keywords：Statistically Syndioselective Copolymerization, 4-Methylthiostyrene
source：期刊
Issue time：2016年

The homopolymerization of a polar monomer, 4-methylthiostyrene (MTS), was successfully achieved by a rare-earth metal based catalyst in the highest activity and the excellent syndioselectivity (rrrr > 99%). Moreover, the copolymerization of this polar MTS with the nonpolar styrene (St) performed fluently under various MTS-to-St ratios in a quasi-living mode. The monomer reactivity ratios were rMTS = 1.08 and rSt = 0.77, following the first Markov statistics, and was close to the ideal random copolymerization. Therefore, a series of unprecedented statistical random copolymers, P(St-r-MTS)s, where the compositions were strictly closed to the monomer fed ratios, had been accessed.