PolymershardNUMERICAL

How many of the following polymers act as elastomers (rubbers) due to the presence of weak van der WPolymers Chemistry Question

Question

How many of the following polymers act as elastomers (rubbers) due to the presence of weak van der Waals forces between their uncoiled chains? Buna-S, Neoprene, Terylene, Polyacrylonitrile (PAN), Buna-N, Natural rubber.

Answer: 4

💡 Solution & Explanation

Elastomers have weak intermolecular forces. Buna-S, Neoprene, Buna-N, and Natural rubber are elastomers. Terylene and PAN (Orlon) are classified as fibres due to stronger intermolecular forces. Therefore, the count is 4.

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