Branched surfactant having fluoroalkyl group and hydrocarbon group

摘要

The present invention relates to a surfactant represented by Formula (I):;[Formula 1]; wherein Rf represents a fluoroalkyl group which may have an ether bond; Rh represents an alkyl group; r represents 1 or 0; when r=0, Z¹ and Z² represent (CH₂)_n1—(X¹)_p1— and —(X²)_q1—, respectively; and when r=1, Z¹ and Z² represent (CH₂Y)_p2—CH₂— and —(CH₂Y)_q2—, respectively, wherein X¹ and X² may be the same or different and each represents a divalent linking group, p1 represents 0 or 1, q1 represents 0 or 1, n1 represents an integer of 1-10; Y represents O, S or NR, wherein R represents a hydrogen atom, methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, sec-butyl, or t-butyl; p2 and q2 each represent 0 or 1 but are not 0 at the same time; and M represents a hydrogen atom, alkali metal, ½ alkaline earth metal or ammonium.