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(30 pts) Two monodisperse polystyrene standards of molecular weights 1.8x106 and 1.6x10% have Tg values of 101.9C and 94.7C, respectively. Calculate the Tg value of

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(30 pts) Two monodisperse polystyrene standards of molecular weights 1.8x106 and 1.6x10% have Tg values of 101.9C and 94.7C, respectively. Calculate the Tg value of polydisperse polystyrene made up of five low polydisperse components as shown below: Component Wt. fraction (w) Average M, 1 0.05 1.5x106 2 0.41 4.8x105 3 0.39 1.2x105 4 0.10 3.7x104 5 0.05 2.3x104

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