Polymer Technology
Thermocole is a spongy, porous, rigid or flexible foamed plastic, obtained by blowing gas/air through molten

Polystyrene
Either B or C
Saturated polyester
Polyurathane

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Polymer Technology
Polyvinyl chloride (PVC)

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

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