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Question -

Define thermoplastics and thermosetting polymers with twoexamples of each.



Answer -

Thermoplastic polymers are linear (slightly branched) longchain polymers, which can be repeatedly softened and hardened on heating.Hence, they can be modified again and again. Examples include polythene,polystyrene.

Thermosetting polymers are cross-linked or heavilybranched polymers which get hardened during the molding process. These plasticscannot be softened again on heating. Examples of thermosetting plastics includebakelite, urea-formaldehyde resins.

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