Which among the following polymers is heat resistant and used to obtain oil seals?

Acrylic resins are:

Which one of the following is used to make 'non-stick' cookware?

Of the following,which one is classified as a polyester polymer?

Identify the monomer used to prepare $Orlon$.

Identify the polymer obtained by heating $n$ moles of isobutylene with $n$ moles of isoprene at $100^{\circ} C$ in the presence of anhydrous $AlCl_{3}$.