Reactivity of Porous Glass with Organic Compounds

Reactivity of porous glass with organosilicones, alcohols, cyclic compound and organohalogens was studied. The density of the introduced organic functional groups from the reaction of organosilicones without steric hindrance was 2.5-4.5μmol·m-2. On the other hand, the density decreased to 20-50% by the reaction of organosilicones with steric hindrance such as dimethyloctadecylchlorosilane and triphenylchlorosilane. The density of the organic functional groups from the reaction of alcohols was 2.77-7.75μmol·m-2, except for t-butanol. When porous glass was treated with alcohols, the density depended on the pore structure of porous glass. The porous glass had a slight reactivity with iodides, but no reaction was observed with bromide and chloride.