Process for the preparation of graft copolymers

Details Process for the preparation of graft copolymers Process for the preparation of graft copolymers

1974-11-13

1976-08-03

Tillman, Murray

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260 27R, 260857L, 260874, 260887, 260889, 260897B, 260898, 260899, 260901, C08L 7700

Patent

active

039729613

ABSTRACT:
Process for the preparation of thermoplastic graft copolymers which comprises heating for about 15 seconds to 60 minutes, with mixing, a trunk copolymer of at least two monomers, at least one of said monomers providing amine-reactive sites taken from the group consisting of the anhydride group, e.g., maleic anhydride; a vicinal pair of carboxylic groups and a carboxylic acid adjacent to an alkoxycarbonyl group, wherein the alkoxy group contains up to 20 carbon atoms, and at least one of said monomers containing no amine-reactive sites, and at least one side chain polymer having per chain one active amine site taken from the group consisting of primary and secondary amines, the remainder of said side chain polymer being substantially unreactive with the reactive sites, e.g., amino-substituted polycaprolactam, polylaurolactam, polyethylene oxide, etc., of the trunk copolymer. The process provides control of the type and length of the side chain polymer grafted onto the trunk copolymer. Plastic graft copolymers are included, specifically those containing one or more side chain polymer types with the proviso that when only one type side chain polymer is present the side chain polymer contains only one nitrogen atom, said atom being found in the active amine site.

REFERENCES:
patent: 2524045 (1950-10-01), Flory
patent: 3136738 (1964-06-01), Hedrick
patent: 3539664 (1970-11-01), Kray
patent: 3644571 (1972-02-01), Anderson
patent: 3676400 (1972-07-01), Kohan

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