Fig. 11. Molecular dynamics snapshots of polymer chains introduced into a single-walled carbon nanotube. Panel (a) shows flexible backbone poly(caprolactone) interacting with the carbon nanotube at 3200 ps.²¹⁵ The colors used for the polymer represent the following atoms: carbon is aqua, hydrogen is pink, and oxygen is red. Panel (b) shows stiff backbone poly(para phenylene vinylene) interacting with the carbon nanotube at 2400 ps.²¹³ The colors used for the polymer represent the following atoms: carbon is aqua, and hydrogen is white. The figure is adapted with permission from ref. 213 and 215. Copyright 2010, American Chemical Society.