Modification of cyclohexanone-formaldehyde resins with silicone tegomers

Cyclohexanone-formaldehyde resins were modified in situ with α,ω-diamine polydimethylsiloxanes and α,ω-dihydroxy polydimethylsiloxanes. Melting points, solubilities in organic solvents, gel permeation chromato-graphs, Fourier transform infrared spectra, and NMR spectra of the modified resin were determined, and the surface properties of the resins were investigated by contact angle measurements. A small amount of silicon compounds seemed to effect the physical properties of the cyclohexanon-e- formaldehyde resins significantly.