The present invention provides for a composition comprising a silane having the formula:
(R1)(R2)(R3)Si—R4—Si(R5)(R6)(R7)
wherein
R1, R2, R3, R5, and R6 are each independently selected from the group consisting of 1 to 6 monovalent hydrocarbon radicals, aryl, and a hydrocarbon group of 7 to 10 carbons containing an aryl group;
R4 is a hydrocarbon group of 1 to 3 carbons;
R7 comprises an anionic, cationic or zwitterionic substituent. The silanes of the present invention exhibit resistance to hydrolysis over a wide pH range.
本发明提供了一种组合物,其包括具有以下式子的
硅烷:(R1)(R2)(R3)Si—R4—Si(R5)(R6)(R7)其中,R1、R2、R3、R5和R6各自独立地选自1到6个单价碳氢基团、芳基和含有芳基基团的7到10个碳的碳氢基团;R4是1到3个碳的碳氢基团;R7包括一个阴离子、阳离子或双电离取代基。本发明的
硅烷在广泛的pH范围内表现出对
水解的抵抗力。