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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.
Saponification number: Saponification number of oil is the number of milligram of potassium hydroxide required to saponify 1 g of oil. Mineral oils are the mixture of hydrocarbons
what is the advantages & disadvanteges of road ways
Coordination between Lab Technician and Teaching Staff Enquire from the technicians how they interact and coordinate with the teaching staff with regard to the following inform
Why protons doesn''t react which each other?
Whats the lifetime of a bugg?
Projection Printing Projection printing, keep away from mask damage entirely. An image of the patterns on the mask is projected onto the resist-coated wafer, which are many cen
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
INTRODUCTION : You have studied of LT-1 course that storage is usually a necessity in most scientific establishments. You know that sufficient and appropriate storage space should
calculate the volume at (160c) and 221c if the quality is 0.85
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