Polymer Technology Addition polymerisation takes place either by a free radical mechanism or ionic machanism depending on the reagents used. Free radical polymerisation is catelyzed by __________ , which decompose to give free radicals. Hydroflouric acid Sulphuric acid None of these Organic peroxides Hydroflouric acid Sulphuric acid None of these Organic peroxides ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Epoxy resins (i.e., epoxide polymers) Use emulsion polymerisation methods Are made by addition polymerisation reaction only Are cross-linked polymers only Contain an epoxy group ( ##### ) at the ends of the polymer Use emulsion polymerisation methods Are made by addition polymerisation reaction only Are cross-linked polymers only Contain an epoxy group ( ##### ) at the ends of the polymer ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Linear polymers are normally Having extremely high softening point Elastometric Thermosplastic Thermosetting Having extremely high softening point Elastometric Thermosplastic Thermosetting ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology __________ polymer is produced by the copolymerisation of vinyl chloride-vinyl acetate. Fibrous Hard Leathery Rubbery Fibrous Hard Leathery Rubbery ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology The monomer of natural rubber is DMT Isoprene Both B and C 2 methyl-1-propene DMT Isoprene Both B and C 2 methyl-1-propene ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology __________ tubes are good substitude for human blood vessels onrheart by-pass operation. Polystyrene Polythene PVC Teflon/dacron Polystyrene Polythene PVC Teflon/dacron ANSWER DOWNLOAD EXAMIANS APP
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