Polystyrene modifications. II. Ring‐substituted polystyrenes

Ring‐substituted styrenes were prepared and polymerized. They usually had higher glass transition temperatures than polystyrene. In some disubstituted systems the Tg was an additive function of the individual groups. Crystallinities of methyl‐substituted polymers varied, depending upon the ring positions involved. Crazing tendencies were equivalent to those in polystyrene.