Polymer Technology Low pressure Zeigler process of polythene manufacture Produces very low density polythene Employs a pressure of 30 kgf/cm² Does not use any catalyst for polymerisation Achieves an yield of 95-98% based on ethylene Produces very low density polythene Employs a pressure of 30 kgf/cm² Does not use any catalyst for polymerisation Achieves an yield of 95-98% based on ethylene ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Addition of plasticisers to polymers results in partial neutralisation of intermolecular forces of attraction between the macro-molecules thereby increasing its All of these Flexibility Tensile strength Chemical resistance All of these Flexibility Tensile strength Chemical resistance ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Polyvinyl chloride (PVC) Can be made thermosetting by adding a plasticiser Is produced by polycondensation reaction Softening temperature is 200°C Uses either emulsion or suspension polymerisation methods Can be made thermosetting by adding a plasticiser Is produced by polycondensation reaction Softening temperature is 200°C Uses either emulsion or suspension polymerisation methods ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Polymethyl methacrylate, which is an acrylic resin, is also called Plexiglass or lucite Teflon Thiokol Dacron Plexiglass or lucite Teflon Thiokol Dacron ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Lavatory cisterns are normally made of Expanded polystyrene Perspex PVC Saturated polyester Expanded polystyrene Perspex PVC Saturated polyester ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology The main use of butadiene is In the manufacture of synthetic rubber None of these As an anti-skimming agent in paint As a plasticiser for unsaturated polyester In the manufacture of synthetic rubber None of these As an anti-skimming agent in paint As a plasticiser for unsaturated polyester ANSWER DOWNLOAD EXAMIANS APP
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