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Polymer Technology

Polymer Technology
Poly tetra flouro ethylene (PTFE) is known as

Teflon
Celluloid
Dacron
Bakelite

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Polymer Technology
Due to its excellent permeability to air/gas and oxidation resistance, the tubes of automobile tyres is made of

Butyl rubber
Buna S
Cold SBR
Bunai N

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

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

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

DMT
Butadiene
Methyl methacrylate
Tetrafluroethylene

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Polymer Technology
Thermoplastic resins usually

Permanent setting resins
Can not be reclaimed from waste
Remain hard as long as they are hot
Less brittle than thermosetting resins

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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.

Elastometric
Thermoplastic
Brittleness
Thermosetting

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