| 摘要 |
<p>A process for preparing an ether-capped poly(oxyalkylated)alcohol surfactant is provided. The alcohol has the formula: R1O[CH2CH(R3)O]xCH2CH(OH)CH2OR2 wherein R?1 and R2¿ are linear or branched, saturated or unsaturated, aliphatic or aromatic hydrocarbon radicals having from 1 to 30 carbon atoms; R3 is H, or a linear aliphatic hydrocarbon radical having from 1 to 4 carbon atoms; x is an integer having an average value from 6 to 15, wherein when x is 2 or greater R3 may be the same or different; further wherein when x is 15 or greater and R3 is H and methyl, at least four of R3 are methyl, further wherein when x is 15 or greater and R3 includes H and from 1 to 3 methyl groups, then at least one R3 is ethyl, propyl or butyl, further wherein R2 can optionally be alkoxylated, wherein said alkoxy is selected from ethoxy, propoxy, butyloxy and mixtures thereof; comprising the steps of: (a) providing a glycidyl ether having formula (I) wherein R2 is defined as above; (b) providing an ethoxylated alcohol having formula (II) wherein R1, R3 and x are defined as above; and (c) reacting the glycidyl ether with the ethoxylated alcohol to form the surfactant.</p> |
