Study of polysiloxanes containing epoxy groups

Polysiloxanes containing 3-(2,3-epoxypropoxy)propyl groups were synthesized by two methods, copolymerization of cyclosiloxanes by base-catalyzed equilibration and hydrosilylation of allyl glycidyl ether with hydrogen-containing silicone oils. The effects of various factors on the reactions were investigated. The structures and epoxy content of the polysiloxanes were determined by IR and 1H-NMR spectra and potentiometric titration, respectively.