Arrange the following polymers in increasing order of their...

The increasing order of intermolecular forces in different polymers is elastomers < plastics $\lt$ fibres. So, in order to solve such problem, first classify the given polymer into the above classes and then arrange them in increasing order of forces. Neoprene (synthetic rubber) is an elastomer, buna-S is also an elastomer, polythene is plastic and nylon-6, 6 is a fibre. So, the increasing order of intermolecular forces of the given polymer is Neoprene $\lt$ buna-S $\lt$ polythene $\lt$ nylon- 6,6