  Polarized far-infrared and submillimeter emission is calculated for models of
nonspherical dust grains that are constrained to reproduce the observed
wavelength-dependent extinction and polarization of starlight. For emission
from regions where the magnetic field is perpendicular to the line-of-sight,
the far-infrared emission is expected to have substantial linear polarization
at wavelengths longer than 100 microns, but the degree of linear polarization,
and its variation with wavelength, is model-dependent. Models in which the
starlight polarization is produced by both amorphous silicate and graphite
grains have linear polarizations between 6% and 10% at wavelengths longer than
100 microns, but for some models in which only silicate grains are spheroidal,
the linear polarization increases from about 3% at 100 microns to about 15% at
1 mm. We briefly discuss the implications of these results for removal of the
polarized dust emission from maps of the Cosmic Microwave Background, as well
as the possibility of discriminating among interstellar dust models based on
observations of far-infrared and submillimeter linear polarization.
