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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.
What are its applications? (i) Direct extrusion: The billet is placed in a container and forced by the die through a piston. (ii) Indirect extrusion: The extruded part
I need an expert in Biochar who can help me to write a review paper and a research paper then help me in publishing it in SCI journal the I pay him or her!
leaching
Bakelite is a material based on the thermosetting phenol formaldehyde resin. Produced by the reaction under heat and pressure of phenol (a toxic, colourless crystalline solid) and
For a substance explained by the van der Waals equation of state with a constant heat capacity CV : 1) Find the internal energy U(T, V ), relative to a reference state at some T
complete phase rule assignment
Number of rooms, their size and allocation: Count the number of rooms including ancillaries (if any). Estimate their size and note the allocation of the main lab, preparatory room
Your first assessment will cover the design of a monolith reactor for the VOCs removal. Therefore, you are asked to do the following: 1. Choose a specific VOC; 2. Search for the
Explain covalent bond A covalent bond is a form of chemical bonding that is characterized by the sharing of pairs of electrons among atoms, or among atoms and other covalent
Application of polymeric liquids in water distribution system
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