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Polymer Technology

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

Butadiene
DMT
Tetrafluroethylene
Methyl methacrylate

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Polymer Technology
Flexible foam (for mattresses) are usually made of

PVC
Polyurethanes
Silicone rubber
Polyamides

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Polymer Technology
Softening point of high density polythene is about __________ °C.

165
85
205
135

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Polymer Technology
Vulcanisation of raw rubber makes it

Soft
Plastic
Tacky
Less elastic

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Polymer Technology
Styrene butadiene rubber (SBR) is never used for making

Coated fabrics
Front wheel tyres of aeroplanes (i.e., heavy duty tyres)
Soles of shoes
Gaskets

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Polymer Technology
Polyesters are manufactured by the polycondensation reaction of

A single monomer
Inorganic acid with ethylene glycol
Carboxylic acid with ethylene
Dibasic acid with dihydric alcohol

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