Polymer Technology Typical solvent polymerisation reaction conditions for the production of high density polythene by Zeigler process is 7 kgf/cm² and 70 °C 1 kgf/cm² (gage) and 70°C 7 kgf/cm² and 700°C 1000 kgf/cm² and 100°C 7 kgf/cm² and 70 °C 1 kgf/cm² (gage) and 70°C 7 kgf/cm² and 700°C 1000 kgf/cm² and 100°C ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Which of the following polymers belong to the class of formaldehyde resin? Dacron Melamine resins Teflon None of these Dacron Melamine resins Teflon None of these ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Crystallisation of polymers is an undesirable property. Crystallisation of celluloid is prevented by adding Camphor None of these Glycerol Nitro cellulose Camphor None of these Glycerol Nitro cellulose ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Thermosetting resins/polymers as compared to thermoplastic ones are Easily reshaped & reused Formed by addition polymerisation only Soluble in all organic solvents More brittle Easily reshaped & reused Formed by addition polymerisation only Soluble in all organic solvents More brittle ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Polypropylene compared to polythene is Lighter Harder Stronger All of these Lighter Harder Stronger All of these ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Cross linked polymers formed from bi-and trifuctional groups in which cross-linkage in three dimensions via few chemical bonding across linear chains occur imparts to the polymer __________ properties. Thermoplastic Elastometric Brittleness Thermosetting Thermoplastic Elastometric Brittleness Thermosetting ANSWER DOWNLOAD EXAMIANS APP
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