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Structure and properties of graft copolymer of starch and resorcinol synthesized using HRP
Author(s) -
Lv Shenghua,
Gong Rui,
Yan Xiaoliang,
Hou Mingming,
Zhang Guoyun
Publication year - 2011
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.35686
Subject(s) - copolymer , starch , monomer , polymer chemistry , fourier transform infrared spectroscopy , resorcinol , materials science , horseradish peroxidase , chemistry , nuclear chemistry , chemical engineering , organic chemistry , composite material , polymer , engineering , enzyme
A modified starch tannage was synthesized by radical copolymerization of degraded starch and resorcinol (RC) using horseradish peroxidase (HRP)/H 2 O 2 as an initiator. The effects of the degradation degree, system pH value, reaction temperature on the copolymerization, and tanning properties of the graft copolymer used in leather processing were investigated. The application results showed that the graft copolymer has excellent tanning properties. The shrinkage temperature ( T s ) of the tanned leather reached 85.4°C, and the thickness increment ratio of the retanned leather was 23.1%. The tanning effects were significantly improved with RC modification compared with the graft copolymer of starch and vinyl monomers. The results indicated that the graft copolymer of starch and RC may be a replacement for toxic chrome and aldehyde tannage. The structure of the graft copolymer was characterized by FTIR, 1 H‐NMR, GPC, and UV. © 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2012