Preparing a functionalized polymer, polytriazole

A method for preparing a functionalized polytriazole polymer, particularly a poly (1,2,4-triazole) polymer, characterized by the steps of: a) mixing a hydrazine salt, particularly hydrazine sulphate, with at least one in particular aromatic and / or heteroaromatic dicarboxylic acid and / or at least one dicarboxylic acid derivative in polyphosphoric acid and optionally further components to obtain a solution, b) heating the solution in a protective gas atmosphere for obtaining polyhydrazides and adding aromatic and / or heteroaromatic primary amines to the solution, c) precipitating a polymer and optionally neutralizing in a basic solution.