SEARCH Articles Figures Tables Alcohols PTMSP) Alkanes PTMSP) Diffusion PTMSP) Enthalpy, excess PTMSP) Ethanol PTMSP) Free PTMSP Glassy polymers PTMSP) Hexane PTMSP) Methanol PTMSP) Mobility PTMSP) Molecular motion PTMSP) Nitrogen PTMSP membranes PTMSP aging studies PTMSP fractional free volume PTMSP free volume elements PTMSP permeability coefficients PTMSP properties Pentane PTMSP) Poly PTMSP membranes Poly [PTMSP