A composition comprising a polymer prepared by: reacting (a) at least one diisocyanate, polyisocyanate, or mixture thereof, having isocyanate groups, and (b) at least one fluorinated compound selected from the formula (I):
R
f
1
-L-X (I)
wherein
R
f
1
is a monovalent, partially or fully fluorinated, linear or branched, alkyl radical having 2 to 100 carbon atoms; optionally interrupted by 1 to 50 oxygen atoms; wherein the ratio of carbon atoms to oxygen atoms is at least 2:1 and no oxygen atoms are bonded to each other;
L is a bond or a linear or branched divalent linking group having 1 15 to 20 carbon atoms, said linking group optionally interrupted by 1 to 4 hetero-radicals selected from the group consisting or —O—, —NR—, —S—, —SO—, —SO
2
—, —N(R)C(O)— wherein R is H or C
1
-C
6
alkyl, and said linking group optionally substituted with CH
2
Cl;
X is an isocyanate-reactive group selected from the group consisting of —OH, —N(R)H, and —SH wherein R is H or C
1
-C
6
alkyl;
and thereafter reacting with (c) water and (d) an isocyanate-reactive non-fluorinated particulate component.
一种组合物,包括由以下方法制备的聚合物:通过反应(a)至少一种具有异
氰酸基的二
异氰酸酯、多
异氰酸酯或其混合物,和(b)选择自式(I)中的至少一种
氟化合物:Rf1-L-X (I)其中,Rf1是具有2到100个碳原子的单价部分或完
全氟化的线性或支链烷基基团;可选地由1到50个氧原子中断;其中碳原子与氧原子的比率至少为2:1,且没有氧原子相互键合;L是1,15到20个碳原子的键或线性或支链二价连接基团,该连接基团可选地由1到4个来自所述群的杂原子基团中断,所述群包括—O—、—NR—、—S—、—SO—、—SO2—、—N(R)C(O)—,其中R是H或C1-C6烷基,并且该连接基团可选地用
CH2Cl取代;X是选择自—OH、—N(R)H和—SH的
异氰酸酯反应性基团,其中R是H或C1-C6烷基;然后与(c)
水和(d)
异氰酸酯反应性非
氟化颗粒组分反应。