A composition comprising one or more compounds of formula (I) or (II):
wherein:
R
f
is a linear or branched perfluoroalkyl having 1 to 7 carbon atoms, optionally interrupted by one to three oxygen atoms,
r and q are each independently an integer of 1 to 3,
j is 0 or 1, or a mixture thereof,
x is from about 1 to about 2,
Z is —O—, —S—, or —NR—,
R is hydrogen or an alkyl group containing 1 to 4 carbon atoms
X is hydrogen or M, and
M is an ammonium ion, an alkali metal ion, or an alkanolammonium ion, and its use in providing surface properties to substrates is disclosed.
一种组合物,包括一个或多个式(I)或(II)的化合物:
其中:
Rf是具有1至7个碳原子的线性或支链
全氟烷基,可选地由1至3个氧原子中断,
r和q各自独立地为1至3的整数,
j为0或1,或其混合物,
x为约1至约2,
Z为—O—,—S—或—NR—,
R为氢或含有1至4个碳原子的烷基,
X为氢或M,
M为
铵离子、碱
金属离子或脂肪族胺离子,
并且其在提供基材表面性能方面的用途被揭示。