| abstract |
A reinforcing agent capable of improving characteristics of a rubber composition and a plastic composition and a method for producing the same are provided. A rubber compound is prepared by fixing a silicon compound having an alkoxysilyl group and a living radical polymerization initiating group to the surface of a solid substance, and subjecting the living radical polymerization initiating group to a polymerization initiating point as a radical radical polymerizable monomer. Alternatively, a plastic reinforcing agent is manufactured. As the silicon compound, one represented by the following general formula (1) is used (wherein A is a radical polymerization initiating group, Z 1 and Z 2 are each independently a divalent group containing at least a carbon atom, R 1 and R 2 are each independently an alkyl group having 1 to 3 carbon atoms, and n is an integer of 1 to 3). [Chemical 1] [Selection figure] None |