MONTE CARLO STUDY ON THE CRITICAL ADSORPTION POINT OF BONDFLUCTUATED POLYMER CHAINS TETHERED ON ADSORBING SURFACES

<正>The behavior of three-dimensional bond fluctuation model chains tethered on an adsorbing fiat surface was simulated by the Monte Carlo method.The dependence of the number of surface contacts M on the interaction strengthεand the chain length N was investigated by a finite-size scaling law M = Nφ[a0 +a1Nl/vκ+ O((Nl/vκ)2)]forεnear the critical adsorption pointεc,i.e.,κ=（ε-εc）/εc closes to 0.The critical adsorption point was estimated to beεc=0.93,and the exponentsφ= 0.49 and l/v= 0.57.