Polymer with strongest intermolecular force is: 

Tetrafluoroethylene is teflon. Since the H atom is not bonded to N, O, or F, it cannot create H bonds.

A polyamide is nylon-6,6. As the hydrogen atom is joined to the amide N atom, hydrogen bonds may occur.

A polymer of styrene is polystyrene. Since the H atom is not bonded to N, O, or F, it cannot create H bonds.

Cis-1,4-polyisoprene is what makes up natural rubber. Since the H atom is not bonded to N, O, or F, it cannot create H bonds.

Nylon - 6,6 is the polymer that has strong intermolecular forces, such as hydrogen bonds.