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1. a) How are Polymers classified?
b) Define polymerization. Differentiate addition and condensation polymerization.
2. a) Explain the free radical mechanism of addition polymerization taking ethylene as a monomer.
b) Give the synthesis and applications of Teflon.
3. a)Differentiate between thermoplastics and thermosetting plastics.
b)What is glass transition temperature?Discuss the following factors affecting GTT
i) Flexibility ii) Intermolecular forces.
4. a) Explain the manufacture and applications of the following high polymers:
i)Polymethylmethacrylates (plexi glass) ii) polyurethanes.
b) What are elastomers? Mention the advantages of synthetic rubber over natural rubber.
5. a) What are the deficiencies of natural rubber? What is vulcanization of rubber.
b) Explain the manufacture of Silicone rubber. Mention their applications.
What are the design considerations for a piping system for the transfer of slurries? The below points should be considered for designing a piping system to carry slurries: >
One cubic metre of wet soil weighs 19.80 kN. If the exact gravity of soil particles is 2.70 and water content is 11%, Determine the void ratio, dry density and degree of saturat
Positive and Negative Photo resist There are two types of photo resist: positive and negative. For positive resists, the resist is exposed with UV light where the underlying ma
The over all diffinition of stripping
Activity to Learn The Handling Of Hazardous Chemicals: Use Of Fume Cupboard Previous you learn about the importance of fume cupboard and its usage. There are many chemicals whi
I need help in developing a program in matlab that can simulate a reactive distillation column. I have all the required model equations needed for the simulation. pls contact me as
Consider the following non-linear ordinary equation with an initial condition, y(t=0)=2. ?? ′ =4?? 0.8?? -0.5?? Compute and plot the solution as a function of time from 0 to
Explain Sommerfeld theory Sommerfeld theory : The theory was originally proposed in 1900 to define and correlate the electrical and thermal properties of metals. Later, quantu
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a) The vacuum in the headspace of a can of food is normally formed by "hot fill" exhausting - that is, the cans are closed when the can is filled with product at a temperature of 8
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