| abstract |
The invention relates to hydrolysable and polymerisable silanes of formula (I), a method of preparing same and their use in the production of silicic acid (hetero)polycondensates and (hetero)polymers. The rests and indices have the following meanings: B = an organic rest with at least one C=C double bond; R = alkyl, alkenyl, aryl, alkylaryl or arylalkyl; R° = alkylene, alkenylene, arylene, alkylene-arylene or arylene-alkylene; R' = alkylene, alkenylene, arylene, alkylene-arylene or arylene-alkylene; X = hydrogen, halogen, hydroxy, alkoxy, acyloxy, alkyl carbonyl, alkoxy carbonyl or NR''2, where R'' is hydrogen, alkyl or aryl; a = 1, 2 or 3; b = 1, 2 or 3, where a+b = 2, 3 or 4; c = 0 or 1; d = 1, 2, 3, 4, 5, 6, 7, 8, 9 or 10; and e = 1, 2, 3 or 4, where e = 1 if c = 0. |