Polymeric material containing aldehyde groups and the method of

Details Polymeric material containing aldehyde groups and the method of Polymeric material containing aldehyde groups and the method of

1975-10-20

1978-06-06

Lilling, Herbert J.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 67UA, 260 72R, C08G 200, C08G 1204, C08G 226

Patent

active

040936023

ABSTRACT:
Three-dimensional polymeric material in the form of spherical particles of diameter .ltoreq.3 mm and containing up to 40% of free aldehyde groups which exhibits a measurable specific surface area is prepared by copolymerization of an aldehyde monomer R.sub.1 CH.dbd.C(CH.dbd.O)R.sub.2, where R.sub.1 is H, C.sub.1-5 alkyl, aryl or furyl and R.sub.2 is H, C.sub.1-5 alkyl, halogen, CN, phenyl or furyl, with a crosslinking agent in the aqueous dispersion phase. The dispersion contains 1 - 25% of a component reducing the monomer solubility in water, which is either an inorganic salt of alkali metal or alkaline earth metal or a water-soluble alcohol. The crosslinking agent used as comonomer is divinylbenzene, diester CH.sub.2 .dbd.C(R.sub.1)COOR.sub.2 OCOC(R.sub.1).dbd.CH.sub.2 (R.sub.1 .dbd. H, C.sub.1-10 alkyl or halogen; R.sub.2 .dbd. C.sub.1-10 alkylene or hydroxyalkylene), or diamide CH.sub.2 .dbd.C(R.sub.1)CONHR.sub.2 NHCOC(R.sub.1).dbd.CH.sub.2 (R.sub.1 .dbd. H, C.sub.1-10 alkyl or halogen; R.sub.2 .dbd. C.sub.1-10 alkylene or phenylene). The material may be used in continuous column processes, e.g. in catalysis of organic syntheses, separation of amines, and immobilization of compounds which contain primary amino groups.

REFERENCES:
patent: 3079357 (1963-02-01), Fischer
patent: 3154599 (1964-10-01), Wismer et al.
patent: 3379688 (1968-04-01), Boning
patent: 3770702 (1973-11-01), Roper et al.
patent: 3813353 (1974-05-01), Clemens et al.

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