The present invention comprises a compound comprising Formula 1A, 1B, or 1C
(Ra-O-CO-)2X Formula 1A
Ra-O-CO-X-CO-O-(CH2CH2)Rf Formula 1B
Ra-O-CO-X-CO-O-R Formula 1C
wherein
Ra is the group RfOCF2CF2-(CgH2g)-; RfOCFHCF2O(CH2CH2O)v-(CgH2g)-; RfOCFHCF2O(CwH2w); or RfOCF(CF3)CONH-(CgH2g);
Rf is CcF(2c+1);
c is 2 to 6;
g is 1 to 4; v is 1 to 4; w is from 3 to 12;
X is a linear or branched difunctional alkyl sulfonate group -CeH(2e-1)(SO3M)-, wherein e is 2 or 3;
M is a monovalent cation selected from the group consisting of hydrogen, ammonium, and alkali metal;
R is H or a linear or branched alkyl group CbH(2b+1)-; and
b is from 1 to 18.
本发明包括由式 1A、1B 或 1C 组成的化合物
(Ra-O-CO-)2X 式 1A
Ra-O-CO-X-CO-O-(CH2CH2)Rf 式 1B
Ra-O-CO-X-CO-O-R 分子式 1C
其中
Ra 是 RfO
CF2CF2-(CgH2g)-;RfOCFH
CF2O(CH2CH2O)v-(CgH2g)-;RfOCFH
CF2O(CwH2w);或 RfOCF(
CF3)CONH-(CgH2g);
Rf 是 CcF(2c+1);
c 是 2 至 6;
g 为 1 至 4;v 为 1 至 4;w 为 3 至 12;
X 是线性或支链双官能团烷基
磺酸盐基团-CeH(2e-1)(SO3M)-,其中 e 是 2 或 3;
M 是选自氢、
铵和碱
金属的单价阳离子;
R 是 H 或直链或支链烷基 CbH(2b+1)-;以及
b 是 1 至 18。