List the differences between High Performance Elastomers and General purpose Elastomers. (03)
[ marks]Give reaction mechanism for synthesis of Hydrogenated Nitrile Rubber. Write its advantages (04) over Nitrile Rubber.
[ marks]Describe the effect of Hydrogenation percentage on properties of Acrylonitrile Butadiene (07) Rubber.
[ marks]List the properties and applications of Flouro Elastomers. (03)
[ marks]Mention the metal oxides used in compounding of Viton. Why it is required? (04)
[ marks]Name the monomers used for synthesis of Flouro Elastomers and draw their structures. (07)
[ marks]Describe the curing systems used for Flouro Elastomers. (07)
[ marks]Give reaction mechanism for synthesis of EVA. (03)
[ marks]Mention the monomer proportion range for elastomeric behaviour of EVA. Write the basic (04) types of EVA elastomers.
[ marks]Give the general synthesis reaction for Polysulfide rubber. Write about its advantages and (07) limitations.
[ marks]List the properties and applications of EVA rubber. (03)
[ marks]Write in brief about relationship between Tg and copolymer composition of EVA rubber with (04) graphical representation.
[ marks]Describe in detail about basic grades of Polysulfide rubber and write about differences among (07) them.
[ marks]Give the abbreviation for Ethylene-Acrylic rubber. Write its major applications. (03)
[ marks]Write about properties of Ethylene-Acrylic rubber vulcanizates. (04)
[ marks]Name the monomers used for synthesis of Acrylic rubbers and also draw their structures. (07)
[ marks]Give differences between Polyacrylate rubber (ACM) and Ethylene-Acrylic rubber. (03)
[ marks]Write about compounding of Ethylene-Acrylic rubber. (04)
[ marks]Mention the cure site monomers used for synthesis of ACM Elastomers with structures and (07) write about its curing system.
[ marks]Write the value of optimum chlorine content and optimum sulfur content for CSM elastomer. (03)
[ marks]How rubberiness is derived in Chlorosulfonated Polyethylene? Explain in brief. (04)
[ marks]Explain the effect of ether oxygen group in properties of Epichlorohydrin Elastomers. (07)1
[ marks]Draw the structure of Chlorosulfonated Polyethylene. Write its important characteristics. (03)
[ marks]Write about the opposing effects of Chlorine group in Hypalon. (04)
[ marks]Describe the basic grades of Epichlorohydrin rubber with their synthesis mechanism. (07)
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