Treatment of Lewis base polymers to improve antistatic, hygrosco

Details Treatment of Lewis base polymers to improve antistatic, hygrosco Treatment of Lewis base polymers to improve antistatic, hygrosco

1987-09-24

1989-02-21

Lieberman, Paul

Bleaching and dyeing; fluid treatment and chemical modification

Chemical modification of textiles or fibers or products thereof

Cellulose fibers

811562, 538 56, 538 57, 538 69, 66169, D06M 100, C08G 1808, C08G 1871, D04B 7100

Patent

active

048061255

ABSTRACT:
A method is provided for treating and modifying solid, high molecular weight Lewis base polymers, particularly shaped structures such as fibers, filaments or knitted fabrics, to form branched polymer with improved electrical conductivity, water absorbency and dye receptivity while retaining the essential structural shape. The method comprises heating the polymer in the presence of an aqueous treating solution containing an ethylenically unsaturated monomer which does not readily polymerize under the conditions of treatment and a catalyst which is a source of hydrogen ions or protons. The treatment is carried out at a temperature and for a sufficient time so as to effect essentially single molecule addition of the monomer pendent to the polymer chain with substantially no graft polymerization of the monomer to the polymer. A particularly preferred embodiment of the method is the treatment of nylon 6,6 knitted fabric with an aqueous solution of acrylamide and hydrochloric acid for about one hour at 95.degree. C. to 100.degree. C.

REFERENCES:
patent: 4563507 (1986-01-01), Dyer
patent: 4705831 (1987-11-01), Dyer

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