简介:Entropiccontributiontotheinteractionparameterxeffinthemodelincompressiblepolymer/oligomersystemiscalculatedbythelatticeclustertheory(LCT).Itisfoundthatintheoligomersolvent,thereexistsawideconcentrationrangethatthenon-combinatorial"entropicinteraction"termxeffφ1φ2perceptiblycounteractsthemeanfieldcombinaryentropy△SMF.Withtheincreaseofthesolventsize,bothxeffandtheratioxeffφ1φ2/ASMFfirstreachtheirmaximumandfinallybecometriviallytozero.Itisworthnotingthatnoanydemixingwasfoundinthecurrentcalculation.Thismakesthecontroversialidea"entropicallydrivendemixing"evenelusive.However,weproposethatfurtherworkoncompressible