| 摘要 |
PROBLEM TO BE SOLVED: To obtain a surfactant useful in a carbon dioxide-water system. SOLUTION: The surfactant is represented by general formula (I) [Rf is a (per)fluoroalkyl group, a (per)fluoroether group or a (per)fluoropolyether group; Rh is an alkyl group; Y is O, S or NR (R is a hydrogen atom, methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, sec-butyl or t-butyl); p and q are not 0 at the same time and are each 0 or 1; M is a hydrogen atom, an alkali metal, 1/2 an alkaline earth metal or ammonium]. COPYRIGHT: (C)2006,JPO&NCIPI
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