Controlled functional density poly (secondary amines)

Details Controlled functional density poly (secondary amines) Controlled functional density poly (secondary amines)

1995-02-03

1995-10-10

Acquah, Samuel A.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

524714, 524785, 524849, 524877, 525 55, 525 86, 525157, 525220, 525240, 525241, 525250, 525251, 5253287, 5253319, 525337, 528230, 528239, 528241, 528246, 528266, 528269, C08K 338

Patent

active

054571553

ABSTRACT:
A process for preparing a controlled functional density poly(secondary amine) comprising: (a) contacting a polymer containing olefinic unsaturation with carbon monoxide in hydrogen under hydroformylation conditions in the presence of a hydroformylation catalyst to produce a controlled functional density polyaldehyde containing reactive carbon-carbon double bonds, and (b) contacting the polyaldehyde with hydrogen and a primary amine under reductive amination conditions in the presence of a ruthenium-containing imine hydrogenation catalyst or (b.sup.1) contacting the polyaldehyde with a sterically hindered aliphatic or cycloaliphatic primary amine or an aromatic primary amine under reductive amination conditions in the presence of an alkali metal borohydride to produce poly(secondary amine) having a substantially equivalent ratio of secondary amine groups to reactive carbon-carbon double bonds as the ratio of aldehyde groups to reactive carbon-carbon double bonds in the polyaldehyde.

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Jachimowicz, F., et al, "Scope and Pathway of Catalytic Aminomethylation of Olefins", J. Org. Chem., 47, 445-47 (1982).
Jachimowicz, F., et al, "Aminomethylation of Diene Polymers--Novel Route to Polyamines", Catalysis of Organic Reactions, Chemical Industries/22, Augustine, R. L. (ed.), pp. 381-390.

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