MIXED FLUOROALKYL-ALKYL SURFACTANTS

摘要

A surfactant of formula (1) A surfactant of formula 1 (Rf-A)a- Q- ([B]k-R)b Formula 1 wherein a and b are each independently 1 or 2; Rf is a linear or branched perfluoroalkyl radical having from 2 to about 20 carbon atoms, optionally interrupted with at least one oxygen; R is a C1 to C20 linear, branched or cyclic alkyl, or a C6 to C10 aryl; B is -(CH2CHR1O)x-, k is 0 or 1, x is 1 to about 20, A is -(CH2)m[(CHR1 CH2O)]S - [(CH2)m (CH)tCHOH(CH2)m]e-, wherein each m is independently 0 to 3, s is 0 to about 30, t is 0 or 1, and e is 0 or 1, R1 is H or CH3, Q is: -OP(O)(O-M+)(O)-, -O-, -S-(CH2)m-C(O)-O-, -SO2-O- -CH2CH2O-C(O)CH2C(OH)(V)CH2C(O)O-; -(CH2CH2O)xCH2CH(OH)-(CH2CH2O)?-(CH2)m- Si[OSi(R2)3]2 -, -SO2NR2- -(CH2CH2O)ZC(O)CH(SO3-M+)CH2C(O)(OCH2CH2)Z - wherein z is 1 to about 15, or a bond when s is a positive integer, V is -C(O)OR3and R3 is H, CH3 or Rf; R2 is C1 to C4 alkyl, and M+ is a Group 1 metal or an ammonium (NHxR2y)+ cation wherein x + y = 4, and R2 is C1 to C4 alkyl, provided that when Q is -OP(O)(O-M+)(O)- or when Q is - (CH2CH2O)Z-C(O)CH(SO3-M+)CH2C(O)(OCH2CH2)Z- then at least one of s or e is a positive integer.