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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.
whycoagulant is not used in hot lime soda proces
I need help in developing a program in matlab that can simulate a reactive distillation column. I have all the required model equations needed for the simulation. pls contact me as
Ask question #Minimum 100 words accepted.hardness of bore water is less than that of sea water-justify
The hardness of quenched Martensite is First enhances and then remains almost constant as the carbon percentage enhances.
In what manner hot worked and cold worked products differ? Hot working of a metal is carried out above its re-crystallization temperature. In this case the metal is not strain
definition
Which one of the following statements is correct? You may wish to examine a molecular model of this compound. 1. Carbon G is an asymmetric center and its configuration is R 2
Write balanced chemical equations for each of the following reactions, omitting (where relevant) all spectator species. (a) Solid calcium dissolves in dilute perchloric acid (HC
Refractoriness under load (RUL): This represents the resistance of a refractory material to the combined efforts of heat and load. RUL is the temperature at which the deformation
Atmospheric carbon dioxide is thought to be responsible for global warming. The table below contains data about the amount of Atmospheric CO 2 (in ppm) over the last fifty year
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