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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.
PROCESSING OF BILL FOR PAYMENT : Your Counsellor will give you one bill. In that bill, you make relevant entries of the following statement using your imagination.
I want to make a report on this topic please help.
Hard magnetic materials Permanent magnets are used as passive generators of magnetic field. To produce and maintain the magnetic field, a material should have both high resid
Compute the kerosene/water ratio necessary to remove 90 % of the nicotine from the aqueous stream in a single equilibrium stage.
describe layout of wet process for portland cement industries ?
What do you understand by Wet bulb Globe temperature? Wet bulb globe temperature index is used to measure the sultriness of environment. Sultriness is calculated on the basis o
Planar defects * Grain boundaries occur where the crystallographic direction of the lattice abruptly changes. This usually happens when two crystals start growing separately an
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what are the merits and demerits of free radical
Explain Polarizability Polarizability is the relative tendency of a charge distribution, such as the electron cloud of an atom or molecule, to be distorted from its normal sh
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