Journal
CARBOHYDRATE POLYMERS
Volume 136, Issue -, Pages 1010-1016Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.carbpol.2015.09.110
Keywords
Starch; Horseradish peroxidase; Methyl acrylate; Graft polymerization
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Funding
- Program for New Century Excellent Talents in University [NCET-12-0883]
- Fundamental Research Funds for the Central Universities [JUSRP51312B]
- Natural Science Foundation of Jiangsu Province [BK20140150]
- Creative Fund of the Cooperation of Industry, Education and Academy of Jiangsu Province, China [BY2013015-18, BY2014023-05]
- Open Project Program of Key Laboratory of Eco-textiles, Ministry of Education, Jiangnan University [KLET1309]
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Horseradish peroxidase (HRP)-mediated graft polymerization in the presence of hydrogen peroxide (H2O2) and acetylacetone (Acac) has been successfully applied to the synthesis of starch-poly(methyl acrylate) (PMA). The graft copolymer was characterized by Fourier transform infrared (FT-IR), elemental analysis, nuclear magnetic resonance (H-1 NMR and C-13 NMR), and differential scanning calorimetry (DSC). FT-IR, elemental analysis and NMR confirmed that methyl acrylate (MA) was grafted onto starch successfully. DSC results showed the graft reaction had changed the crystalline regions of the gelatinized starch. The effects of pH, MA content, HRP dosage, incubation temperature and time on grafting percentage (GP) and grafting efficiency (GE) were also investigated. The GP and GE under optimal conditions reached 30.21% and 45.13%, respectively. (C) 2015 Elsevier Ltd. All rights reserved.
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