WATER-IN-CARBON DIOXIDE MICROEMULSIONS WITH A FLUOROCARBON-HYDROCARBON HYBRID SURFACTANT
WATER-IN-CARBON DIOXIDE MICROEMULSIONS WITH A FLUOROCARBON-HYDROCARBON HYBRID SURFACTANT
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DOI：
10.1021/la00022a028
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发表时间：
1994-10-01
期刊：
影响因子：
3.9
通讯作者：
OREAR, EA
中科院分区：
文献类型：
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作者：
HARRISON, K;GOVEAS, J;OREAR, EA
由混合氟碳/烃表面活性剂C7 F15 CH（OS 0（3）（-）- Na+）C7 H15、水和CO2组成的单相微乳液溶解大量的水。例如，单相微乳液中的水与表面活性剂的比例在25 ℃和231巴下高达32，而先前研究的150多种表面活性剂在高达50 ℃的温度下的值接近0。此外，在1.9wt%表面活性剂的情况下，高达2wt%的水是可溶的，这是在纯CO2中可溶的量的10倍。在CO2中形成微乳液的表面活性剂的设计的要求进行检查。
A one-phase microemulsion composed of a hybrid fluorocarbon/hydrocarbon surfactant C7F15CH(OS0(3)(-)- Na+)C7H15, water, and CO2 solubilizes substantial amounts of water. For example, the water-to-surfactant ratio in a single phase microemulsion is as high as 32 at 25 degrees C and 231 bar, compared with a value near 0 for more than 150 previously studied surfactants for temperatures up to 50 degrees C. Also with 1.9 wt % surfactant, up to 2 wt % water is soluble, which is 10 times the amount soluble in pure CO2. The requirements for the design of surfactants that form microemulsions in CO2 are examined.