Θ-polymers in crowded media under stretching force Original Research Article

We study the peculiarities of stretching of globular polymer macromolecules in a disordered (crowded) environment, using the model of self-attracting self-avoiding walks on site-diluted percolative lattices in space dimensions image. Applying the pruned–enriched Rosenbluth chain-growth method (PERM), we construct the phase diagram of collapsed–extended state coexistence when varying temperature and stretching force. The change in shape characteristics of globular polymers under stretching is analyzed as well.