| 摘要 |
The invention relates to single step process for the preparation of poly (oxyalkylene)-alpha, omega-dicarboxylic acids of the formula HO2CCH2O(CH2CHRO)nCH2CO2H, wherein R is hydrogen, methyl or mixtures of hydrogen and methyl on the individual molecule and n is an integer of from 100 to 2500, comprising the steps of reacting, an oxidising agent such as poly (oxyalkylene glycol) with Jone's reagent in a polar solvent at a temperature in the range of 10° C. to room temperature for a period ranging between 1 hour to 12 hours, quenching the reaction by adding free radical scavanger, removing oxidation by-products from reaction mixture by adsorbing them on an adsorbing agent to obtain dicarboxylic acids in the solution, and evaporating the clear solution to obtain poly (oxyalkylene)-alpha, omega-dicarboxylic acids.
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