This work reports on the use of the ellipsometry technique to study the polarization state of emitted light by poly[2-methoxy-5-((2'-ethylhexyl)oxy)-1,4-phenylenevinylene] (MEHPPV) in solution. The sample presents a partially linear-polarized fluorescence not affected by molecular-concentration, excitation-laser power, probe-wavelength and cuvette-material. The independence of the polarization degree with these variables and its variation with solvent viscosity suggest that the effect can be understood, assuming the existence of a steady regime where light is absorbed and reemitted faster than the average molecular diffusion time. Moreover, we verified that the polarized emission is also observed by other polymers in solution. (C) 2008 Published by Elsevier B.V.