  We study the static properties of a semiflexible polymer exposed to a
quenched random environment by means of computer simulations. The polymer is
modeled as two-dimensional Heisenberg chain. For the random environment we
consider hard disks arranged on a square lattice. We apply an off-lattice
growth algorithm as well as the multicanonical Monte Carlo method to
investigate the influence of both disorder occupation probability and polymer
stiffness on the equilibrium properties of the polymer. We show that the
additional length scale induced by the stiffness of the polymer extends the
well-known phenomenology considerably. The polymer's response to the disorder
is either contraction or extension depending on the ratio of polymer stiffness
and void space extension. Additionally, the periodic structure of the lattice
is reflected in the observables that characterize the polymer.
