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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.
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understanding the concept of entrepreneurship and the process of innovation, come out with one assignment per group the used of materials in industry.
Emulsification: Emulsification can be defined as the property of oils to get intimately mixed with water easily. Emulsions can be oil in water emulsion or water in oil emulsion. C
Give the properties and applications of Bakelite. This is most common type of phenol formaldehyde. This is hard, thermosetting, dark coloured material. Its major properties
concequence of sludge and slag formation in boiler
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Methane containing 4 mol% N 2 is flowing through a pipleline at 105.1 kpa and 22 °C. To check this flow rate, N 2 at the same temperature and pressure are introduced to the piple
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how to make waxes? properties for the waxes dispersion properties of waxes
Explain the process of extrusion In this process a round heated billet of metal placed in a container is forced out by a die in a press. This process is commonly used for manuf
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