Polymer Technology Polyvinyl chloride (PVC) Uses either emulsion or suspension polymerisation methods Is produced by polycondensation reaction Can be made thermosetting by adding a plasticiser Softening temperature is 200°C Uses either emulsion or suspension polymerisation methods Is produced by polycondensation reaction Can be made thermosetting by adding a plasticiser Softening temperature is 200°C ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology __________ polymer is produced by the copolymerisation of vinyl chloride-vinyl acetate. Hard Leathery Fibrous Rubbery Hard Leathery Fibrous Rubbery ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology The main use of butadiene is As an anti-skimming agent in paint None of these In the manufacture of synthetic rubber As a plasticiser for unsaturated polyester As an anti-skimming agent in paint None of these In the manufacture of synthetic rubber As a plasticiser for unsaturated polyester ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Tubeless tyres are made of __________ rubber, which is a co-polymer of isoprene & isobutylene. Neoprene Silicone Nitrile Butyl Neoprene Silicone Nitrile Butyl ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Epoxy resins (i.e., epoxide polymers) Are made by addition polymerisation reaction only Use emulsion polymerisation methods Are cross-linked polymers only Contain an epoxy group ( ##### ) at the ends of the polymer Are made by addition polymerisation reaction only Use emulsion polymerisation methods Are cross-linked polymers only Contain an epoxy group ( ##### ) at the ends of the polymer ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Styrene which is a monomer for the production of polystyrene, is commercially produced by the Reacting ethylene oxide with acetal-dehyde Catalytic dehydrogenation of ethyl benzene Fermentation of starch Dehydration of ethyl alcohol followed by hydrogenation Reacting ethylene oxide with acetal-dehyde Catalytic dehydrogenation of ethyl benzene Fermentation of starch Dehydration of ethyl alcohol followed by hydrogenation ANSWER DOWNLOAD EXAMIANS APP
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