Polymer Technology
Thermocole (expanded polystyrene) is not used for

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

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Polymer Technology
Polyvinyl chloride (PVC)

Is produced by polycondensation reaction
Softening temperature is 200°C
Uses either emulsion or suspension polymerisation methods
Can be made thermosetting by adding a plasticiser

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