Polymer Technology Thermosetting resins/polymers as compared to thermoplastic ones are Formed by addition polymerisation only More brittle Soluble in all organic solvents Easily reshaped & reused Formed by addition polymerisation only More brittle Soluble in all organic solvents Easily reshaped & reused ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology The rate controlling step in the manufacture of silicone rubber is the Initial hydrolysis of silicone monomer Condensation of siloxane to silicone Polymer termination step None of these Initial hydrolysis of silicone monomer Condensation of siloxane to silicone Polymer termination step None of these ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology In case of dry spinning of polymers, the polymer solution in a volatile solvent is forced through the spinnerates into a warm air chamber, where the solvent evaporates leaving behind the polymer in the filament form. Dry spinning is used for __________ fibres. Rayon Polyvinyl acetate Polythene PVC Rayon Polyvinyl acetate Polythene PVC ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Temperature maintained in the emulsion polymerisation reactor for PVC manufacture is about __________ ° C. -20 250 50 500 -20 250 50 500 ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology __________ is a homopolymer. Neoprene Nylon-66 Bakelite Terylene Neoprene Nylon-66 Bakelite Terylene ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Catalyst used in the production of high density polythene by low pressure Ziegler process is Platinum Nickel Molybdenum Aluminium triethyl activated with TiCl₄ Platinum Nickel Molybdenum Aluminium triethyl activated with TiCl₄ ANSWER DOWNLOAD EXAMIANS APP
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