title: Critical adsorption of a flexible polymer confined between two parallel interacting surfaces.
abstract: Critical adsorption of a lattice self-avoiding bond fluctuation polymer chain confined between two parallel impenetrable surfaces is studied using the Monte Carlo method. The dependence of the mean contact number <M> on the temperature T and on the chain length N is simulated for a polymer-surface interaction E=-1. A critical adsorption of the polymer is found at T(c)=1.65 for large surface separation distance D>N(ν)b, whereas no critical adsorption is observed for small distance D<N(ν)b, where ν ≈ 0.58 is the Flory exponent and b is the mean bond length. The critical adsorption point T(c)=1.65 is the same as that of a grafted polymer. Normal diffusion is observed for the confined polymer; however, the diffusion rate is dependent on the temperature and surface separation distance.
authors: Department of Physics, Wenzhou University, Wenzhou 325035, China.
authors: Hong
authors: H
authors: Li
authors: Chang-Ji
authors: CJ
authors: Qian
authors: Chao
authors: C
authors: Wang
authors: Meng-Bo
authors: MB
authors: Luo
mesh_terms: D000327:Adsorption; D003198:Computer Simulation; D055119:Elastic Modulus; D008956:Models, Chemical; D008958:Models, Molecular; D011108:Polymers / Q000737:chemistry*; D013499:Surface Properties
chemical_list: D011108:Polymers