prov:value
| - One preferred group of polyols are aliphatic polyols and glycols such as glycerol, trimethylolpropane, 1,3-butylene glycol, 1,4-butylene glycol, propylene glycol, hydroxylated castor oils, polyethers such as poly(tetramethylene ether glycols) and poly(propylene ether glycols), low molecular weight polyester polyols, such as polyethylene adipate, and a poly(caprolactone)diol.
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