Here is an essay describing how the structures of different polymers relate to their functions:
The structures of polymers determine their functions through the arrangement of monomers that make up the polymer chains. There are three main types of polymer structures: linear, branched, and cross-linked.
Linear polymers have long, straight chains of monomers linked together in a head-to-tail pattern. Nylon is an example of a linear polymer. Its linear structure gives nylon strength and flexibility, making it suitable for uses like clothing, ropes, and carpets. The strength comes from the tight packing and alignment of the polymer chains.
Branched polymers have chains that branch out from the main polymer backbone. Low-density polyethylene (LDPE