  The presence of ordered structures such as helices in collapsed states of
polymer chains is still an open question challenging physics and biology. In
this work, we present a potential model for polymer chains with monomers that
are not strictly attractive, but that can make adhesive contacts with other
monomers. We find that the chain develop helical order during the process of
collapsing from an initially stretched conformation. It seems in this case that
the adhesive contacts help the polymer chain to stay trapped in the helix
state.
