Light scattering study of the liquid-glass transition of meta-toluidine

An experimental study of the glass transition of meta-toluidine combining s everal light scattering techniques was performed. The structural relaxation time is measured in depolarized geometry from the glass transition tempera ture up to well above the melting point and found to vary over 13 time deca des. An analysis by means of the idealized Mode Coupling Theory shows that, as found in other aromatic liquids, experimental results obtained in depol arized light scattering can be described by this theory above T-c in a two- decade frequency range. The polarized Brillouin doublet, measured in the ba ckscattering geometry between 176 K and 300 K, is also analyzed. None of th e sets of parameters we obtained in fitting those spectra could fulfil all the requirements of this Mode Coupling Theory. (C) 2000 American Institute of Physics. [S0021-9606(00)52220-X].