Ethylene-propylene rubber can be:

Orlon has a monomer unit:

The polydispersity index $(PDI)$ of a polymer is $1.25$. If $\overline{M}_{n}$ is $800$,what is its $\overline{M}_{w}$?

Which of the following structures represents the Neoprene polymer?

$A$ polymer with high chemical stability has a melting point $(M.P.)$ of $327\ ^\circ C$ and the density of a completely crystalline sample is $2.3\ g/cm^3$. It is:

Characteristic property of $Teflon$ is