Polymer Technology Thermosetting resins/polymers as compared to thermoplastic ones are 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 Formed by addition polymerisation only ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Polyesters are manufactured by the polycondensation reaction of A single monomer Dibasic acid with dihydric alcohol Carboxylic acid with ethylene Inorganic acid with ethylene glycol A single monomer Dibasic acid with dihydric alcohol Carboxylic acid with ethylene Inorganic acid with ethylene glycol ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Addition of stabiliser during PVC manufacture is done to Improve its impact strength Reduce the melt viscosity & glass transition temperature Prevent its thermal degradation Improve its elasticity Improve its impact strength Reduce the melt viscosity & glass transition temperature Prevent its thermal degradation Improve its elasticity ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Antioxidants are added to rubber to protect it from the attack of light, heat & atmospheric ozone. Which of the following is an antioxident used in rubber? Alkylated diphenyl amine Carbon Magnesium Thiokol Alkylated diphenyl amine Carbon Magnesium Thiokol ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology __________ is a copolymer. Polyrophylene Poly tetra flouro ethylene Nylon-66 PVC Polyrophylene Poly tetra flouro ethylene Nylon-66 PVC ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Branched chain polymers compared to linear polymers have higher Degree of irregularity in atomic packing Tensile strength Density Melting point Degree of irregularity in atomic packing Tensile strength Density Melting point ANSWER DOWNLOAD EXAMIANS APP
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