1. Of the polymers listed in Table 11.3, which polymer(s) would be best suited for use as ice cube trays? Why? 2. For each of the following pairs of polymers, plot and label schematic specific...

1. Of the polymers listed in Table 11.3, which polymer(s) would be best suited for use as ice cube trays? Why? 2. For each of the following pairs of polymers, plot and label schematic specific volume-versustemperature curves on the same graph [i.e., make separate plots for parts (a) to (c)]. (a) Linear polyethylene with a weight-average molecular weight of 75,000 g/mol; branched polyethylene with a weight-average molecular weight of 50,000 g/mol (b) Spherulitic poly(vinyl chloride) of 50% crystallinity and having a degree of5000; spherulitic polypropylene of 50% crystallinity and degree of polymerization of 10,000 (c) Totally amorphous polystyrene having a degree of polymerization of 7000; totally amorphous polypropylene having a degree of polymerization of 7000