Justify the Hydrogenated Nitrile rubber as a High Performance Elastomer. (03)
[ marks]Write about catalytic Hydrogenation for Nitrile rubber with reaction mechanism. (04)
[ marks]Describe the effect of RDB level on properties of Hydrogenated Nitrile Rubber. (07)
[ marks]How Vamac is different than other Acrylic Elastomers in terms of properties? (03)
[ marks]Give synthesis reaction for Vamac. (04)
[ marks]Describe the Reed process for production of Hypalon. (07)
[ marks]Draw the structure of Chlorosulfonated Polyethylene (CSM). Write about its chemical (07) composition and rubberiness.
[ marks]Write in brief about processing of Fluoro Elastomers. (03)
[ marks]Write about the major difference between chemical composition of Fluoro Elastomers (04) (FKM) and Perfluorocarbon Elastomer (FFKM).
[ marks]Mention basic stages for crosslinking process of Fluoro Elastomers and give reaction (07) mechanism showing the curing process.
[ marks]Write the significance of Metal Oxide in compounding of Fluoro Elastomers. (03)
[ marks]Give synthesis reaction for Perfluorocarbon Elastomer. (04)
[ marks]Name various monomers for synthesis of Fluoro rubbers. Draw the structures and write (07) about Flourine content of different FKM Elastomers.
[ marks]Mention the structural formula of a Chlorine containing Polyacrylic Elastomer. (03)
[ marks]Write about curing system and plasticizers for Acrylic Elastomers. (04)
[ marks]Describe the effect of Vinyl Acetate content on EVA copolymer with appropriate (07) graphical representation.
[ marks]Draw the structures for cure site monomers of Acrylic Elastomers. (03)
[ marks]Explain about characteristics of various monomers used for Acrylic rubbers. (04)
[ marks]Give synthesis reaction for EVA Elastomer. ( 0 7 ) Mention its basic types, properties and applications.
[ marks]Give difference between Epichlorohydrin copolymer and terpolymer in terms of (03) properties.
[ marks]Give synthesis reaction for Epichlorohydrin Copolymer (ECO). (04)
[ marks]Describe the composition of Thiokol A. Mention its synthesis reaction and properties. (07)
[ marks]Mention the effect of the presence of ether oxygen group on Epichlorohydrin rubbers. (03)
[ marks]Write about important properties and applications of Epichlorohydrin rubbers. (04)1
[ marks]Short note on Liquid Polysulphide Polymers. (07)
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