Polymer Technology Polyvinyl chloride (PVC) Uses either emulsion or suspension polymerisation methods Can be made thermosetting by adding a plasticiser Softening temperature is 200°C Is produced by polycondensation reaction Uses either emulsion or suspension polymerisation methods Can be made thermosetting by adding a plasticiser Softening temperature is 200°C Is produced by polycondensation reaction ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology The starting material used for the manufacture of caprolactum is Ethylene glycol DMT Ethyl benzene Cyclohexane Ethylene glycol DMT Ethyl benzene Cyclohexane ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Polystyrene is a light, transparent, thermoplastic material used for making Toys and combs Non-sticking utensils Packaging bags Electrical insulation Toys and combs Non-sticking utensils Packaging bags Electrical insulation ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Branched chain polymers compared to linear polymers have higher Melting point Density Degree of irregularity in atomic packing Tensile strength Melting point Density Degree of irregularity in atomic packing Tensile strength ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology In a linear polymer, the monomeric units are linked together to form long straight chains. The cross linked or branched chain polymers compared to linear polymers have higher Hardness, rigidity & brittleness Tensile strength Melting point Densities Hardness, rigidity & brittleness Tensile strength Melting point Densities ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology The rate controlling step in the manufacture of silicone rubber is the Initial hydrolysis of silicone monomer None of these Condensation of siloxane to silicone Polymer termination step Initial hydrolysis of silicone monomer None of these Condensation of siloxane to silicone Polymer termination step ANSWER DOWNLOAD EXAMIANS APP
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