Noun
polyether (plural polyethers)
(organic chemistry) a polymer, such as an elastomer, in which carbon atoms of the repeating units are joined by a single oxygen atom
Polyester polyols are usually more expensive and more viscous than polyether polyols, but they make polyurethanes with better solvent, abrasion, and cut resistance. Source: Internet
Polyether polyols are mostly made by co-polymerizing ethylene oxide and propylene oxide with a suitable polyol precursor. citation Polyester polyols are made similarly to polyester polymers. Source: Internet
Cardolite® LITE 9001 is a light color polyether polyol based on cashew nutshell liquid technology by Cardolite. Source: Internet
TEGO® Foamex 28 by Evonik is an emulsion of a polyether siloxane copolymer, containing fumed silica. Source: Internet
Polyols Polyols can be polyether polyols, which are made by the reaction of epoxides with an active hydrogen containing compounds Polyester polyols are made by the polycondensation of multifunctional carboxylic acids and polyhydroxyl compounds. Source: Internet
Polyether polyols were cheaper, easier to handle and more water-resistant than polyester polyols, and became more popular. Source: Internet