Polymer Technology Thermosetting resins/polymers as compared to thermoplastic ones are Soluble in all organic solvents Formed by addition polymerisation only More brittle Easily reshaped & reused Soluble in all organic solvents Formed by addition polymerisation only More brittle Easily reshaped & reused ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Nylon 6, 10 which is used for bristles making is superior to nylon 6, 6 due to its lower water absorption capacity, is a/an Polyester Polyamide Polyisoprene Polystyrene Polyester Polyamide Polyisoprene Polystyrene ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Polyurathane can not be used to make Automobile cushion Coating and adhesive Thermal insulation in refrigerator Fibre reinforced plastic (FRP) Automobile cushion Coating and adhesive Thermal insulation in refrigerator Fibre reinforced plastic (FRP) ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Molecular weights of plastics ranges from 5000 to 1000 10⁹ to l0¹¹ 1000 to 5000 20000 to 25000 5000 to 1000 10⁹ to l0¹¹ 1000 to 5000 20000 to 25000 ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Polycondensation reaction of polymerisation Does not need any catalyst Produces only thermoplastic material Produces epoxy polymers Does not produce linear polymers Does not need any catalyst Produces only thermoplastic material Produces epoxy polymers Does not produce linear polymers ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology In a cross linked polymer, the monomeric units are linked together to constitute a three dimensional network. Which of the following is a cross-linked polymer? Bakelite (phenol formaldehyde) Polythene Nylon-6 Polyester Bakelite (phenol formaldehyde) Polythene Nylon-6 Polyester ANSWER DOWNLOAD EXAMIANS APP
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