Toluene → 2-Ethylhexanol

Participants

Reaction Steps

A similar four-necked flask was charged with 120 g of the allyl group-bearing epoxy resin produced above, 100 g of methyl isobutyl ketone, 200 g of toluene and 0.04 g of a 2-ethylhexanol-modified chloroplatinic acid solution having a platinum concentration of 2%. After one hour of azeotroping off water, 80 g of an organopolysiloxane blocked with hydrogen atoms at both ends represented by the following formula (7) was added dropwise over 30 minutes at the reflux temperature. Stirring was continued at the temperature for a further 4 hours for reaction. The resulting contents were washed with water and the solvent was distilled off in vacuum. The reaction product was a silicone-modified epoxy resin of the above formula (6) serving as Silicone stress-reducing agent 2.

Provenance & Evidence