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Polymer Technology

Polymer Technology
__________ practically possess no elasticity.

Polysulphide rubber
Spandex fibre
Epoxy resin
Vulcanite or ebonite

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Polymer Technology
Polyurathane can not be used to make

Coating and adhesive
Fibre reinforced plastic (FRP)
Automobile cushion
Thermal insulation in refrigerator

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Polymer Technology
A copolymer is formed by the combination of two or more monomer molecules

With the elimination of small amount of water
Of the same monomer by elimination of small molecules of water
In a chain without the elimination of water
None of these

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Polymer Technology
Plastic tubes & pipes are generally made by __________ moulding.

Injection
Compression
Extrusion
Transfer

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Polymer Technology
__________ is a copolymer.

Polyrophylene
PVC
Poly tetra flouro ethylene
Nylon-66

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Polymer Technology
__________ of SBR is adversely affected, if more quantity of styrene is added to butadiene during its co-polymerisation to produce SBR.

Percent elongation
Resilience
Strength
Freezing point

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