In the diagram below, polymer samples A, B, and C have been subjected to DSC. 1.4 Reverse Heat Flow (W/g) B -0.4 1.4 Reverse Heat Flow (W/g) -0.4 0 25 50 75 100 125 150 175 200 Temperature (deg C) a. For each of the polymers A (black line), B (blue line), and C (purple line), estimate the Tg, Tc, and Tm temperatures. b. In comparing polymers A and B, consider the following situations, respond to the prompts, and justify your selections from a molecular basis: i. Assuming the same level of cross-linking and chemical composition, which sample has a higher molecular weight? ii. Assuming the same level of molecular weight, which polymer exhibits characteristics consistent with a lower amount of branching? iii. All else being equal, which polymer exhibits bulkier side groups? c. In comparing polymers A and B, speculate which would exhibit a higher Young's modulus. Justify your answer from a molecular perspective. d. What kind of physical change is absent from sample C? Describe this in terms of both the molecular alterations/chain arrangements and specify the kind of thermic process that is missing from this sample. What can you conclude about this sample's ability to crystallize? In the diagram below, polymer samples A, B, and C have been subjected to DSC. 1.4 Reverse Heat Flow (W/g) B -0.4 1.4 Reverse Heat Flow (W/g) -0.4 0 25 50 75 100 125 150 175 200 Temperature (deg C) a. For each of the polymers A (black line), B (blue line), and C (purple line), estimate the Tg, Tc, and Tm temperatures. b. In comparing polymers A and B, consider the following situations, respond to the prompts, and justify your selections from a molecular basis: i. Assuming the same level of cross-linking and chemical composition, which sample has a higher molecular weight? ii. Assuming the same level of molecular weight, which polymer exhibits characteristics consistent with a lower amount of branching? iii. All else being equal, which polymer exhibits bulkier side groups? c. In comparing polymers A and B, speculate which would exhibit a higher Young's modulus. Justify your answer from a molecular perspective. d. What kind of physical change is absent from sample C? Describe this in terms of both the molecular alterations/chain arrangements and specify the kind of thermic process that is missing from this sample. What can you conclude about this sample's ability to crystallize