Polymer Technology
Thermocole (expanded polystyrene) is not used for

High temperature thermal insulation in furnaces
Low temperature thermal insulation as in refrigerator and air conditioners
Accoustic control and ceiling for building
Packing of delicate electronic gadgets

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Polymer Technology
Dacron is a

Condensation polymerisation product of dimethyl terephthalate (DMT) and ethylene glycol
Condensation polymerisation product of hexamethylene diamine and adipic acid
Thermosetting material
None of these

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