Polyethylene glycol, one of the chemical components in Polyether block amide serves what purpose?
Polyethylene glycol Polyethylene glycol (PEG) is a polyether compound with many applications from industrial manufacturing to medicine.
Polyester Polyester is a category of polymers that contain the ester functional group in their main chain. As a specific material, it most commonly refers to a type called polyethylene terephthalate (PET). Polyesters include naturally occurring chemicals, such as in the cutin of plant cuticles, as well as synthetics through step-growth polymerization such as polybutyrate. Natural polyesters and a few synthetic ones are biodegradable, but most synthetic polyesters are not. This material is used very widely in clothing.