Glass Transition of the Solvent in a Polystyrene Gel

抄録

The mechanism of the glass transition of solvent quinoline in a polystyrene (quinoline) gel is studied by measurements of get length and depolarized Rayleigh scattering. It is found that the effect of intermolecular force between quinoline molecules and the polystyrene network is important in the glass transition of the solvent. Due to the force, fluctuations in orientations of solvent molecules are frozen and the molecules are bound to the network. With nearing the glass transition temperature, the intensity of a broad Rayleigh component decreases due to decrease of the number of solvent molecules fluctuating in the network and that of a narrow Rayleigh component increases due to increase of inhomogeneity of the gel density.