Hydrolysable and polymerisable silane(s) useful in coating, adhesive and moulding compsns. or composites

摘要

Hydrolysable and polymerisable silanes of formula (I) are new: B(A-(Z)d-R<1>(R<2>)-R'-SiXaRb)c (I); B = a 4-50 C organic gp. with at least one C=C double bond; X = H, halogen, OH, alkoxy(carbonyl), acyloxy, alkylcarbonyl or NR"2; R = alk(en)yl, (alkyl)aryl or arylalkyl; R' = 0-10 C alkylene, arylene, arylene-alkylene or alkylene-arylene, opt. with O, S or amino in the chain; R" = H, alkyl or aryl; A = O, S or NH for d = 1, Z = CO and R<1> = 1-10 C alkylene, arylene or alkylene-arylene, opt. with O, S or amino in the chain, and R<2> = COOH or H; or A = O, S, NH or COO for d = 1, Z = CHR and R = H, alkyl or (alkyl)aryl or d = 0 with R<1> = 1-10 C alkylene, arylene or alkylene-arylene, opt. with O, S, or amino in the chain, and R<2> = OH; or A = S for d = 1, Z = CO, R<1> = N and R<2> = H; a = 1, 2 or 3; b = 0, 1 or 2; a + b = 3; c = 1, 2, 3 or 4. Also claimed is the use of (I) in a method for preparing. silicic acid (hetero)polycondensates (II) and in free radical polymerisation.