Preparation of graft copolymer of phenols and starch by HRP-catalyzed system and characterization of structure and properties
Year: 2012
Type: article
Abstract: A graft copolymer was synthesized by means of radical copolymerization of phloroglucinol(PG),hydroxyl benzene sulfonic acid sodium(HBS) and degraded starch which was degraded by α-amylase and the graft copolymerization was catalyzed by horseradish peroxidase(HRP)/H2O2.It was investigated the effects of degradation degree of starch,monomer ratio of phenols,the dosage of HRP,polymerization temperature and pH value on structure and properties of modified starch.The optimum reaction conditions were obtained as follows: mass ratio of PG to HBS 12∶20,15g starch which was degraded by α-amylase,polymerization 30℃ pH 7.0 and 5mg of HRP solution.The surface tension of modified starch solution was 26.6mN/m and the shrinkage temperature(Ts) of tanned leather reached 78℃.Meanwhile the chemical structure of the graft copolymer was characterized by FT-IR,1H-NMR,UV-Vis and GPC.
Author: Zhang Guo-yun
Language: English
Subfield: Polymers and Plastics
Field: Materials Science
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $3,258
OpenAlex ID: W2352829010