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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.
Spelling resistance: The breaking or cracking or peeling off the refractory is known as spelling. A good refractory must show a good resistance to thermal spelling. Thermal spelli
how tofind renold constant..
The various types of polarization processes are: a) Electronic polarization b) Ionic Polarization c) Orientation Polarization, and d) Space charge Polarization
Find a Rate Expression for the Reaction The saponification of the ester propargyl acetate, A, with base, B, was studied by Myers, Collett, and Lazzell using a conductivity tech
PLACEMENT OF ORDER WITH THE FIRM FOR THE SUPPLY OF GOODS A format of an order form is given below. You are required to fill it for the supply of the following equipments from
what is break point on chlorination
air flows through apipe at arte of 200L/S. The pipe of two sections of diameters 20cm and 10cm with asmoth reducing section the pressure are difference between the two pipe sectio
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introduction
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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