Which of the following has the weakest intermolecular forces?

Which of the following has the weakest intermolecular forces? Correct Answer Buna-N

Elastomers (buna-N) have the weakest intermolecular forces whereas fibres (nylon-6,6) have very strong intermolecular forces due to hydrogen bonds and dipole-dipole forces. Thermoplastic polymers (polythene, polystyrene) have intermolecular attractions intermediate to that of elastomers and fibres.

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