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5. For the Kuhn segment of many polymers, (b/d)23. Polystyrene is known to have a Kuhn length b=0.7nm and a -temperature of 34.5C in cyclohexane.

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5. For the Kuhn segment of many polymers, (b/d)23. Polystyrene is known to have a Kuhn length b=0.7nm and a -temperature of 34.5C in cyclohexane. (i) At a temperature of T=80C, does cyclohexane act as a good solvent or an athermal solvent? Justify your answer mathematically. (ii) What is the value of T above which the system is athermal? Given the boiling point of cyclohexane, is this accessible under standard conditions (P=1atm)

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