Change in the kinetics of delayed annihilation fluorescence during rearrangement of polymer-chain structure in a nanocavity of a solid adsorbent

Specially derived spatial density distributions of units of the polymer chain adsorbed by the surface of a nanosized spherical or cylindrical cavity were used to describe the kinetics of the bimolecular reaction of cross annihilation of electronic excitation in nanoporous media. The cases of marked attraction of the chain units by cavity walls and the lack of the attraction were considered. The formation of the radial profile of the density of the units was simulated by means of molecular dynamics to compare with the analytical expressions used.