Patent ID: 11919772
Assignee: DALIAN UNIVERSITY OF TECHNOLOGY
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC C  B | IPC C

Claim 1:
2. The method according to claim 1, wherein the compound of formula I in step (1) is selected from the group consisting of 2,4-diaminobenzenesulfonic acid, orthanilic acid, metanilic acid, sulfanilic acid, m-phenylenediaminodisulfonic acid, 3,5-diaminobenzoic acid, p-aminochlorobenzene, p-aminoanisole, p-aminobenzonitrile, p-aminophenol, o-aminobenzoic acid, m-aminobenzoic acid, p-aminobenzoic acid, aniline, o-phenylenediamine, m-phenylenediamine, p-phenylenediamine, p-aminothiophenol, p-nitroaniline, o-aminophenylboronic acid, m-aminophenylboronic acid, p-aminophenylboronic acid, and p-aminophenol phosphate monoester.