Dipropylene glycol reaction with propylene oxide

Reaction of Dipropylene Glycol with Propylene Oxide. 167... [Pg.152]

The P-series glycol ethers are products of the reaction of propylene oxide with various alcohols. Reaction of propylene oxide with methanol in a 1 1 mole ratio yields propylene glycol methyl ether, PM. Further reaction of PM with propylene oxide yields the dipropylene glycol methyl ether, DPM, and the tripropylene glycol methyl ether product, TPM. The aromatic ether analogue of propylene glycol is propylene glycol phenyl ether, PPh. [Pg.191]

Dipropylene glycol and tripropylene glycol, which are to some extent made along with propylene glycol during the hydration of propylene glycol, are also made specifically by reaction of propylene glycol with propylene oxide. [Pg.20]

A solution of dipropylene glycol containing aqueous potassium hydroxide was dewatered on a rotary evaporator. The resulting composition was then heated in an autoclave at 100° while a mixture of propylene oxide and ethylene oxide was gradually added. This reaction stage was followed by the addition of further quantities of ethylene oxide. The product was isolated after neutralization with dilute hydrochloric acid, followed by dewatering and filtration. A... [Pg.167]

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