Polymer Technology Plasticisers are added to synthetic plastics to Develop new improved properties not present in the original resin All of these Improve workability during fabrication Impart flexibility Develop new improved properties not present in the original resin All of these Improve workability during fabrication Impart flexibility ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Thermosetting resins/polymers as compared to thermoplastic ones are 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 Soluble in all organic solvents ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Identify the group in which all the polymers mentioned can be used to make fibres. Butadiene copolymers, Polyamides, Urea aldehyde Cellulose derivatives, Polyamides, Polyurathane Cellulose derivatives, Polyisoprene, Polyethylene Polypropylene, Poly vinyl chloride, Silicon Butadiene copolymers, Polyamides, Urea aldehyde Cellulose derivatives, Polyamides, Polyurathane Cellulose derivatives, Polyisoprene, Polyethylene Polypropylene, Poly vinyl chloride, Silicon ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Viscosity of a polymer solution or melt Decreases with increase in molecular weight Increases with increase in temperature Does not vary with temperature rise Decreases with increase in temperature Decreases with increase in molecular weight Increases with increase in temperature Does not vary with temperature rise Decreases with increase in temperature ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology The conversion of caprolactum in the above case is about __________ percent. 90 50 25 70 90 50 25 70 ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Styrene butadiene rubber is commercially manufactured by Emulsion polymerisation Bulk polymerisation Suspension polymerisation Solution polymerisation Emulsion polymerisation Bulk polymerisation Suspension polymerisation Solution polymerisation ANSWER DOWNLOAD EXAMIANS APP
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