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Polymer Technology

Polymer Technology
Commercial production of polypropylene employs __________ polymerisation.

Emulsion
Suspension
Solution
Bulk

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Polymer Technology
Polycondensation of saturated dicarboxylic acid with polyhydric alcohol produces

Polyamide
Phenolic resin
Alkyd resin
Epoxy resin

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Polymer Technology
Polycaprolactum is also known as

Teflon
Nylon-6
SBR
Nylon-66

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Polymer Technology
Typical solvent polymerisation reaction conditions for the production of high density polythene by Zeigler process is

7 kgf/cm² and 700°C
1 kgf/cm² (gage) and 70°C
7 kgf/cm² and 70 °C
1000 kgf/cm² and 100°C

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Polymer Technology
Which of the following is not an elastomer?

None of these
Nitrile-butadiene
Polyisoprene
Neoprene

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Polymer Technology
Cross linked polymers formed from bi-and trifuctional groups in which cross-linkage in three dimensions via few chemical bonding across linear chains occur imparts to the polymer __________ properties.

Thermosetting
Brittleness
Elastometric
Thermoplastic

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