Polymer Technology __________ practically possess no elasticity. Vulcanite or ebonite Epoxy resin Spandex fibre Polysulphide rubber Vulcanite or ebonite Epoxy resin Spandex fibre Polysulphide rubber ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Molecular weight of a polymer is equal to the molecular weight of the repeat unit multiplied by the degree of polymerisation. What is the molecular weight of poly vinyl chloride (PVC), if its degree of polymerisation is 800? 50000 51600 50800 49200 50000 51600 50800 49200 ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Polyvinyl chloride (PVC) Is produced by polycondensation reaction Can be made thermosetting by adding a plasticiser Uses either emulsion or suspension polymerisation methods Softening temperature is 200°C Is produced by polycondensation reaction Can be made thermosetting by adding a plasticiser Uses either emulsion or suspension polymerisation methods Softening temperature is 200°C ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Most of the fibre forming polymers are crystalline in nature, one of the exceptions being __________ which is amorphous in nature. Polyester Polyacrylonitrile Nylon Polypropylene Polyester Polyacrylonitrile Nylon Polypropylene ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Glyptal used in the manufacture of paints & lacquers is a __________ polymer. Polyamide Polystyrene Polyacrylonitrile Polyester Polyamide Polystyrene Polyacrylonitrile Polyester ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Thermosetting polymers as compared to thermoplastic polymers Have linear structure None of these Are formed by addition polymerisation Have three dimensional structure Have linear structure None of these Are formed by addition polymerisation Have three dimensional structure ANSWER DOWNLOAD EXAMIANS APP
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