CONCENTRATION PROFILES OF CONFINED CHAINS HAVING ABSORBING AND REFLECTING STATISTICS

After recalling the two step-by-step chain-generation procedures of lo ng chains used in Monte Carlo simulations, which lead respectively to absorbing and to reflecting statistics, a suggestion is made regarding the statistics to be considered when polymer chains are confined. Acc ording to this suggestion, which originates in the respective shapes o f the chain-step concentration profiles, there is in good solvents a s hift of statistics from absorbing to reflecting, when the dimensions o f the bounding surface become comparable to or smaller than those of t he free (non-confined) chain. Copyright (C) 1996 Elsevier Science Ltd.