The free energy of mixing (per mole of lattice sites) of a polymer (B) solution in A
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Question:
The free energy of mixing (per mole of lattice sites) of a polymer (B) solution in A (according to the Flory Huggins model) is
RT * [phi_{A} * ln(phi_{A}) + phi_{a}/s_{y} * ln(phi_{a}) + chi*phi_{A} * phi_{s}]
Plot the critical parameters ( phi A,c , phi B,c , chi c ,T c ) for the solution as a function of the degree of polymerization S_{B} .
where R is the gas constant and the interaction parameter is chi = chi_{1} / T , where chi_{1} = 300K .
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