ynopsis p-(2-Pyridylthiomethyl)styrene (PTMS) and p-(2-pyridylthioethyl)styrene (PTES) were prepared from the reactions of 2-pyridinethiol with p-chloromethylstyrene and with p-bromoethylstyrene, respectively. These monomers are readily polymerized in the presence of AIBN.From the copolymerization of PTMS with styrene, QmMs = 1.19 and ems = 0.24 were obtained. The resulting polymers can extract alkali metal ions such as sodium and potassium cations. The extraction ability increases with increasing the density of active sites in polymers. Further these polymers serve as phase transfer catalysts for the reduction of carbonyl compounds by sodium borohydride.
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