Abstract The present invention relates to new compounds which are graft copolymers of cellulose and polyacrylthiomide with the general formula WHEREIN A is cellulose m is the degree of polymerization of cellulose ranging from 150 to 2,000 N IS THE DEGREE OF POLYMERIZATION OF POLYACRYLTHIOAMIDE RANGING FROM 400 TO 4,000; METHOD OF PRODUCING THESE NEW COMPOUNDS AND TO APPLICATION THEREOF. The method of producing said compounds resides in treating graft polymers of cellulose and polyacrylonitrile with hydrogen sulphide or with salts of hydrosulphuric acid in an aqueous or an organic medium at a temperature of 60*-100* C and subsequently isolating the target product. The herein-proposed compounds can find application as electronexchange complex-forming materials in chemical industry, metallurgy and in other industries.
A method of producing graft copolymers of cellulose and polyacrylthioamide of the general formula
Claim 2
Dependent Claim
23 words
A method as claimed in claim 2 wherein the process is carried out in an aqueous medium at a pH not above 8.
Claim 3
Dependent Claim
36 words
A method as claimed in claim 2 wherein said salts of hydrosulphuric acid are selected from the group consisting of sodium and ammonium sulphides and hydrosulphides, and the process is carried out in an aqueous medium.
Claim 4
Dependent Claim
26 words
A method as claimed in claim 2 wherein said salts of hydrosulphuric acid are ammonium hydrosulphides and the process is carried out in an organic medium.
Claim 5
Dependent Claim
22 words
A method as claimed in claim 2 wherein the organic solvent is selected from the group consisting of dimethyl formamide and dioxane.