Abstract
A copolymer of vanillin and gallic acid was synthesized using HRP/H2O2 as initiator. The chemical structure of the copolymer was characterized by means of FTIR, NMR and GPC. The copolymer was applied in making leather as a tanning agent and the shrinkage temperature (Ts) of tanned leather reached 82.5°C. The average thickness increment ratio (E) of retanned leather was 19.4%. It has also excellent assisting dyeing and soft leather fibers properties. The application leather has desired dyeing effect and excellent softness.
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