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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.
application of molecular diffusion in industries
will u provide chemical properties of nitroparaffins and its block diagram for preparation of nitroparaffins?
The most common DC applications are: Electromagnets and yokes • Relays • Magnetic shields • Electrical measuring devices • Magnetic amplifiers
In what important respect does the conductivity of a conductor differ from that of an intrinsic Semiconductor. It is well known that the conductivity of a conductor i
In a ferroelectric material, the spontaneous polarization vanishes above Curie temperature.
Where we have strong bond:ch20 ,h20,n20 and why?
bernaulli''s theorm related numericals
numericals
iwant to check first if you can write a report about project that inovlves dynamic simulation before submitting my assignment.
what is austenitic steel
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