You might have tried stretching a rubber band or squeezed a rubber toy. Have you noticed that they regain their original shape once they are released? This is possible because they are elastomers.
Elastomers are rubber-like solid polymers with elastic properties. That is, they can be easily stretched and can regain their original shape no matter how much you squeeze or stretch them. The force of attraction between the molecules of an elastomer is weak. Remember vulcanized rubber that we discussed earlier? That too is an elastomer. Vulcanized rubber has a cross linked chain which is helps it remain its original form.
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