Question: In a binary system solvent ( 1 ) / polymer ( 2 ) , the composition at which the UCST occurs depends on polymer molecular

In a binary system solvent (1)/polymer (2), the composition at which the UCST occurs
depends on polymer molecular weight (see Fig. 8-8). According to the Flory-Huggins theory, the critical segment fraction is 2**c=11+r12. Derive this expression.
In a binary system solvent (1)/polymer (2), the composition at which

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