Synthetic Rubbers — Winter 2018

Give the name of monomers and structure of Propylene Oxide rubber (GPO).

Write about basic catalyst systems and their importance for synthesis of Isoprene rubber.

Explain the manufacturing Process of Butyl Rubber.

Mention the important grades of Fluorocarbon Elastomer with their monomer composition.

Give the synthesis reaction for Polypentenamer.

Polymerization temperature is an important variable in determining the character of Polychloroprene rubber”. Justify the statement.

Explain the Manufacturing Process of Neoprene Rubber.

Give the general synthesis reaction for Polysulfide rubber.

Name the rubber which is used in manufacturing of soft contact lenses. Why?

Write the beneficial properties and applications of Ethylene Propylene Diene Methylene Rubber (EPDM).

How the rubberiness is achieved in Hypalon?

Write about the Abbreviation and structural formula for Epichlorohydrin terpolymer.

Which characteristics are required for third monomer used in synthesis of Ethylene Propylene Diene Methylene Rubber (EPDM)? Write their name, structure and give comparison between them.

Why copolymerize the Styrene and Butadiene rather than blend the homopolymers?

Draw the flow diagram of Batch process of Styrene butadiene rubber (SBR).

Explain the Manufacturing Process of Nitrile Rubber.

Write the Disadvantages of Carbon black Master batch Styrene Butadiene Rubber.

Write a brief note on Oil Extended Styrene Butadiene Rubber (OESBR).

Give any two important application of Ethylene Vinyl Acetate (EVA).

Mention the important grades of Fluorocarbon Elastomer with their monomer composition.

Silicon rubber is the versatile Rubber.” Justify the statement.

Mention the limitations of Polybutadiene Rubber (PBR).

Give the general properties of Fluororubber (FKM).

Discuss about the Mixing operation, Processing Problem and their remedies for Silicone rubber.