How are the polymers classified based on heat treatment? – InterviewSolution

1.	How are the polymers classified based on heat treatment?
Answer» SOLUTION :Based on heat treatment polymers are two types. They are thermoplastic polymers and thermosetting polymers. Thermoplastic polymers are addition linear polymers. These soften and melt on heating. They can be remoulded, recast and RESHAPED. EG : PVC, polystyrene, NYLON, etc. Thermosetting polymers are condensation cross linked polymers. These become more HARD on heating. They cannot be remoulded or reshaped, eg : Bakelite, terylene, urea - formaldehyde resin, etc.

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