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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.
is DTA a type of heating oil in constant temperature bath?
can you help with process control questions
equivalant weight ofmg(hco3)2
calogen conditioning?
Describe various properties and applications of mica and transformer oil. Properties and uses of MICA Mica has a high dielectric strength and good chemical stability, making
a) List the dissimilar Heat transfer equipment involved in your plant. Also describe the governing principle or modes of heat transfer for every equipment that listed. Determine th
scanning electron microscope
Soft-Baking Soft-baking is the step during which almost all of the solvents are separate from the photo resist coating. Soft-baking plays a very critical role in photo-imaging.
calculate the volume at (160c) and 221c if the quality is 0.85
wet chemical synthisis method
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