Polymer Technology SBR is produced by the copolymerisation of butadiene & styrene by employing emulsion polymerisation. The weight ratio of styrene and butadiene is maintained at 1:2 2:1 1:3 3:1 1:2 2:1 1:3 3:1 ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Plasticisers are added to synthetic plastics to Impart flexibility Develop new improved properties not present in the original resin Improve workability during fabrication All of these Impart flexibility Develop new improved properties not present in the original resin Improve workability during fabrication All of these ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology __________ of SBR is adversely affected, if more quantity of styrene is added to butadiene during its co-polymerisation to produce SBR. Freezing point Percent elongation Strength Resilience Freezing point Percent elongation Strength Resilience ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Polymers are Macromolecules Sub-micromolecules Micromolecules None of these Macromolecules Sub-micromolecules Micromolecules None of these ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Which of the following is a natural polyamide fibre. None of these Cotton Silk Wool None of these Cotton Silk Wool ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology A chain growth polymerisation reaction consists of three different types of reaction namely initiation reaction, propagation reaction & termination reaction. Chain growth polymerisation reaction is not involved in the manufacture of Urea-formaldehyde resins Polyamides Siloxane elastomers Vinyl polymers Urea-formaldehyde resins Polyamides Siloxane elastomers Vinyl polymers ANSWER DOWNLOAD EXAMIANS APP
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