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For each of the following pairs of polymers, plot and

For each of the following pairs of polymers, plot and

For each of the following pairs of polymers, plot and label schematic specific volume versus temperature curves on the same graph [i.e., make separate plots for parts (a), (b), and (c)].
(a) Spherulitic polypropylene, of 25% crystallinity, and having a weight-average molecular weight of 75,000 g/mol; spherulitic polystyrene, of 25% crystallinity, and having a weight-average molecular weight of 100,000 g/mol
(b) Graft poly(styrene-butadiene) copolymer with 10% of available sites crosslinked; random poly(styrene-butadiene) copolymer with 15% of available sites crosslinked
(c) Polyethylene having a density of 0.985 g/cm3 and a degree of polymerization of 2500; polyethylene having a density of 0.915 g/cm3 and a degree of polymerization of 2000

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