Polymer Technology Cation exchange resins (0.3 to 1 mm size) used in water treatment is prepared from __________ resins. Epoxy Melamine formaldehyde Phenol formaldehyde Urea formaldehyde Epoxy Melamine formaldehyde Phenol formaldehyde Urea formaldehyde ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Which of the following polymers does not belong to the class of polyacrylate polymer? PMMA Polyacrylonitrile Polyethyl acrylate None of these PMMA Polyacrylonitrile Polyethyl acrylate None of these ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Perspex can be used as a substitute of glass. Its monomer is DMT Tetrafluroethylene Methyl methacrylate Butadiene DMT Tetrafluroethylene Methyl methacrylate Butadiene ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology The main use of butadiene is 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 In the manufacture of synthetic rubber None of these ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Polyvinyl chloride (PVC) Softening temperature is 200°C Uses either emulsion or suspension polymerisation methods Is produced by polycondensation reaction Can be made thermosetting by adding a plasticiser Softening temperature is 200°C Uses either emulsion or suspension polymerisation methods Is produced by polycondensation reaction Can be made thermosetting by adding a plasticiser ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Molecular weights of plastics ranges from 10⁹ to l0¹¹ 1000 to 5000 5000 to 1000 20000 to 25000 10⁹ to l0¹¹ 1000 to 5000 5000 to 1000 20000 to 25000 ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS