Process for the preparation of polyaldehydes by polymerization of bifunctional monomers and related products

Abstract

Process for the preparation of polyaldehydes by polymerization with a redox system, of bifunctional monomers having the general formula: ##EQU1## wherein R.sub.1 = R.sub.2 = H and R.sub.3 is --H, --CH.sub.3, --C.sub.2 H.sub.5, --C.sub.3 H.sub.7, --C.sub.6 H.sub.13, or --C.sub.6 H.sub.5 or R.sub.1 = R.sub.3 = H and R.sub.2 is --CH.sub.3, --C.sub.6 H.sub.5, or --CH.sub.3 --CH = CH, performing the polymerization under stirring, in absence of light and in an oxygen free nitrogen atmosphere, for a period of 2-20 hours, at a temperature ranging from 0.degree. to 40.degree.C, using degassed and double distilled water as a solvent and K.sub.2 S.sub.2 O.sub.8 /AgNO.sub.3 as a redox system, adding degassed and double distilled water to the polymerized mass, collecting the polyaldehyde by filtration and centrifugation, washing several times with water, then with 0.1 N HNO.sub.3, again washing with water and finally with acetone and drying the product.

Dependencies are inferred from the claim text.