Viscoelastic and Glass Transition Properties of Ultrathin Polystyrene Films by Dewetting from Liquid Glycerol

We have used the liquid dewetting method originally proposed by Bodiguel and Fretigny (Eur. Phys. J. E: Soft Matter Biol. Phys. 2006, 19 (2), 185–193) to study thickness effects (ranging from 4 to 154 nm) on the viscoelastic and glass transition behaviors of ultrathin polystyrene (PS) films. PS with molecular weights of 278 and 984 kg/mol and various thermal treatments were examined. Both glass transition temperature (Tg) reduction and film...