  We consider the lattice model for an ideal-linear polymer chain to mimic the
conformations of the semi-flexible homo-polymer chain. The polymer chain is
assumed to confine in the fairly small area, such that the flexible chain
conformations are easily polymerized in the nano-area. It has been described
using analytical calculations that such a situation may lead to interesting and
distinct theoretical findings of the thermodynamics of semi-flexible
homo-polymeric macromolecules where the macromolecules are confined in the
nano-length scale. We also discuss the characteristics of the persistent length
and the elastic force due to the nano scale confinement of an infinitely long
ideal polymer chain.
