BONUS (30 points) Please do a web search in order to solve this question and provide references. (Keyword Hint: Differential scanning calorimetry, polymers) Thermal transition steps associated with polymeric materials are given above. On X axis you have the total heat acquired by the sample and on Y axis you have the increasing temperature. Please answer following questions according to that curve: i) What is a glass transition temperature and why it is a endothermic reaction? Please provide 5 polymer examples with different glass transition temperatures. (minimum 50 words) ii) What is crystallization refer to in-terms of polymeric microstructure? (minimum 20 words) iii) What happens in polymeric materials during melting? Please provide information on the melting points for 2 metal and 2 polymeric material and compare them. iv) (minimum 50 words) v) What is the difference between a thermosetting and thermoplastic polymer.? (minimum 50 words) vi) Is oxidation a reversible process? In other words once a polymer is oxidized at a high temperature can we reverse it by decreasing the temperature? (minimum 20 words) vii) Provide an example application for thermosetting polymers (minimum 50 words)