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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.
explane
Soft-Baking Soft-baking is the step during which almost all of the solvents are separate from the photo resist coating. Soft-baking plays a very critical role in photo-imaging.
The similar system is now heated in two stages, by rst contacting with a reservoir at T2 halfway among T1 and Tf , then by contacting with the reservoir at Tf . Again and the ent
how to solve partial differential equation using matlab and also discreteing the pdf in matlab
Q. Discuss the significance of viscosity in lubricating oil. How the viscosity is determined by Redwood viscometer? OR Wr
what us thermodynamics
performance equation
Outline a procedure for photolithography in the fabrication of electronic devices. What are the limitations of this procedure? Photolithography is the process of transferrin
PREPARATION OF COMPARATIVE CHART You are given three envelopes containing quotations from three firms for two items. You will prepare a comparative chart in the format given be
Can I have online tuition sessions for reaction engineering ?
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