Hamiltonian and partition function of the generalized model of polypeptide chain in competing and non-competing solvents in the presence of interchain interactions

For the generalized model of polypeptide chain in competing and non-competing solvents, the Hamiltonian is constructed with allowance for interchain interactions. It is shown that the partition function for the model in a solvent coincides to inessential factor with the partition function without solvent, if redefinition is made of the reduced interaction energy J for a competing solvent and of the number of conformations Q for a non-competing solvent.