Why is China's stock market falling and how might it affect the global economy? Concerns about inflation, shares and interest rates are raised after âBlack Mondayâ chaos sees billions wiped off markets around the globe.
A polyol is an alcohol containing multiple hydroxyl groups. In two technological disciplines the term polyol has a special meaning: food science and polymer chemistry.n polymer chemistry, polyols are compounds with multiple hydroxyl functional groups available for organic reactions. A molecule with two hydroxyl groups is a diol, one with three is a triol, one with four is a tetrol and so on.
A diol is a chemical compound containing two hydroxyl groups. This pairing of functional groups is pervasive and many subcategories have been identified. The most common diols in nature are sugars and their polymers, cellulose.The most common industrial diol is ethylene glycol.Examples of diols in which the hydroxyl functional groups are more widely separated include 1,4-butanediol HOâ(CH2)4âOH and bisphenol A, and propylene-1,3-diol or beta propylene glycol, HO-CH2-CH2-CH2-OH.he most common industrial diol is ethylene glycol. Examples of diols in which the hydroxyl functional groups are more widely separated include 1,4-butanediol HOâ(CH2)4âOH and bisphenol A, and propylene-1,3-diol or beta propylene glycol, HO-CH2-CH2-CH2-OH.