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Polymer Technology

Polymer Technology
Perspex can be used as a substitute of glass. Its monomer is

Methyl methacrylate
Tetrafluroethylene
Butadiene
DMT

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Polymer Technology
The only natural thermoplastic resin, which is a product of animal life is

Rosin
Shellac
Amber
Copal

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Polymer Technology
Which of the following is the most important rubber compounding ingradient which is used to improve wearing qualities of both natural rubber & SBR by imparting toughness?

Carbon black
Pine oil
Rosin
Phosphorous

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Polymer Technology
Size range of polymer molecules varies from __________ metre.

10⁻⁴ to 10⁻⁷
10⁻⁸ to 10⁻¹⁰
10⁻² to 10⁻⁵
10⁻¹ to 10⁻²

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Polymer Technology
Branched chair polymers as compared to linear polymers have

Higher tensile strength
Lower density
Higher melting point
None of these

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Polymer Technology
In condensation polymerisation as compared to addition polymerisation

Generally only one monomer is involved
The monomers are unsaturated compounds
No co-product is lost
The monomers contain two functional groups

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