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 Densities Tensile strength Hardness, rigidity & brittleness Melting point Densities Tensile strength Hardness, rigidity & brittleness Melting point ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology In step growth polymerisation, generally only one type of reaction & some basic mechanism is involved. Step growth polymerisation reaction is not involved in the manufacture of Cross linked polystyrene Polyamides Polyesters Phenol formaldehyde resins Cross linked polystyrene Polyamides Polyesters Phenol formaldehyde resins ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Condensation polymerisation of caprolac-tum is carried out in the reactor maintained at a temperature of __________ °C for producing nylon-6. 250-280 100 to 150 50 to 75 -20 to 25 250-280 100 to 150 50 to 75 -20 to 25 ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology __________ polythene is most prone to stress-cracking Cross-linked High density Linear low density Low density Cross-linked High density Linear low density Low density ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Cation exchange resins used in water treatment is made from __________ resin. Urea formaldehyde Epoxy Amino Phenolic Urea formaldehyde Epoxy Amino Phenolic ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Cation exchange resins (0.3 to 1 mm size) used in water treatment is prepared from __________ resins. Epoxy Phenol formaldehyde Melamine formaldehyde Urea formaldehyde Epoxy Phenol formaldehyde Melamine formaldehyde Urea formaldehyde ANSWER DOWNLOAD EXAMIANS APP
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