PREPARATION OF STYRENE DERIVATIVES CONTAINING SULFIDE GROUP - ADDITION-REACTIONS OF THIOPHENOL AND ITS DERIVATIVES TO 1,4-DIVINYLBENZENE

To prepare styrene derivatives containing a sulfide group such as 4-vinyl-1-[(2-phenylthio)ethyl]benzene, the addtition reactions of thiophenols to 1,4-divinylbenzene were carried out in the presence of AIBN or BPO. The maximum yields of the corresponding adducts were about 62% by the G.C. method. The competitive addition reaction of thiophenol to 1,4-divinylbenzene and the remaining vinyl group of the mono-adduct simultaneously took place to decrease the yield of the mono-adduct. The effects of the reaction time, reaction temperature and the additive in the course of the reaction are discussed based on gas chromatographic studies. The monomer reactivity ratio of the obtained mono-adduct was estimated by the radical copolymerization with MMA.