Polymer Technology Branched chain polymers compared to linear polymers have higher Tensile strength Degree of irregularity in atomic packing Density Melting point Tensile strength Degree of irregularity in atomic packing Density Melting point ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Liners of bags are usually made of Polypropylene PVC Polythene Polyesters Polypropylene PVC Polythene Polyesters ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology In a cross linked polymer, the monomeric units are linked together to constitute a three dimensional network. Which of the following is a cross-linked polymer? Polythene Bakelite (phenol formaldehyde) Polyester Nylon-6 Polythene Bakelite (phenol formaldehyde) Polyester Nylon-6 ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Polyvinyl chloride (PVC) 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 Uses either emulsion or suspension polymerisation methods Can be made thermosetting by adding a plasticiser ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Tubeless tyres are made of __________ rubber, which is a co-polymer of isoprene & isobutylene. Silicone Nitrile Butyl Neoprene Silicone Nitrile Butyl Neoprene ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Epoxy resins (i.e., epoxide polymers) Are cross-linked polymers only Contain an epoxy group ( ##### ) at the ends of the polymer Are made by addition polymerisation reaction only Use emulsion polymerisation methods Are cross-linked polymers only Contain an epoxy group ( ##### ) at the ends of the polymer Are made by addition polymerisation reaction only Use emulsion polymerisation methods ANSWER DOWNLOAD EXAMIANS APP
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