| 摘要 |
<p>A sulfide chain-bearing organosilicon compound having the average compositional formula;
€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ (R 1 O) (3-p) (R 2 ) p Si-R 3 -S-(R 4 -S m ) q -R 4 -S-R 3 -Si(OR 1 ) (3-p) (R 2 ) p
is prepared at low costs and in high yields by reacting a halogen-terminated organosilicon compound having the formula: (R 1 O) (3-p) (R 2 ) p Si-R 3 -S-R 4 -X, and optionally a halide having the formula: X-R 4 -X and/or sulfur with an aqueous solution or dispersion of a polysulfide M 2 S n or hydrate thereof in the presence of a phase transfer catalyst. R 1 and R 2 are monovalent C 1-4 hydrocarbon groups, R 3 and R 4 are divalent C 1-10 hydrocarbon groups, m has an average value of 2-6, n has an average value of 2-6, p is 0, 1 or 2, q is 1, 2 or 3, X is halogen, and M is ammonium or alkali metal.</p> |
