| 摘要 |
<p>A composition useful to provide oil repellency, water repellency, and stain resistance to substrates comprising a polymer prepared by contacting a polytluoroalkyl sulfonyl halide with a compound of Formula II: (E-(O)q)3Si-O-(Si(R2)2-O) m [Si(R3-NHR4)(R2)O] n-Si-((O)q-E)3, Formula III: HR4N-R3-Si(R2)2-O-[Si(R2) 2-O]m [Si(R3-NHR4)(R2)O] n-Si-(R2)2-R3-NHR4 or Formula IV: HR4N-R3-Si(R2)2-O-[Si(R2)2-O]mSi-((O)q-E) 3, wherein each R2 is independently a C1 to C8 alkyl, each R3 is independently a divalent group containing carbon, oxygen, and optionally at least one of nitrogen oxygen and sulfur, each R4 is independently H or C1 to C8 alkyl, each E is independently a C1 to C 8 branched or linear alkyl, each q is independently zero or 1, m is a positive integer, and n is independently zero or a positive integer, such that n/(m+n) is zero or a positive fraction having a value up to about 0.7, and the polymer viscosity is less than or equal to 10000 mPa.s under a shear rate of 0.1 s-1 at a temperature of 20°C.</p> |
