Differentiate between thermoplastic & thermoset behavior of plastics.
[3 marks]Draw the structures of i)PS ii)PMMA iii)PVOH iv)Teflon
[4 marks]Discuss about the structure and properties of HDPE & LDPE.
[7 marks]Draw the isotactic, syndiotactic and atactic structures of PP.
[3 marks]Explain about Homo chain & Hetero chain plastic giving examples.
[4 marks]Discuss about the effect of carbon on the properties of polymers.
[7 marks]Discuss about the effect of plasticizers on the properties of polymers.
[7 marks]Explain with examples about Homo polymers & Copolymers.
[3 marks]Compare the properties of crystalline & amorphous polymers.
[4 marks]Discuss about the effect of oxygen on properties of polymers.
[7 marks]What are additives? List various additives used for plastics.
[3 marks]Explain how structure of a polymer affects its mechanical properties.
[4 marks]Draw the structure and describe the properties & applications of Nylon 66.
[7 marks]List the applications of PP and HDPE.
[3 marks]PE has a Tg of -20 deg c but it appears to be solid at room temperature. Why?
[4 marks]How does presence of halogens affect the properties of polymers?
[7 marks]Describe the properties of Teflon.
[3 marks]List the properties & applications of PMMA.
[4 marks]Discuss about structure & properties of Bisphenol Apolycarbonates. What are its important applications?
[7 marks]Compare the structure of PVC to PE
[3 marks]Discuss briefly about effect of molecular weight on properties of polymers.
[4 marks]Explain the factors affecting Tg of a polymer.
[7 marks]Why PVC has self extinguishing properties? Explain.
[3 marks]Explain about blowing agents with examples.
[4 marks]Explain the factors affecting crystallinity of a polymer.
[7 marks]