Frontal polymerization synthesis and characterization of Konjac glucomannan‐graft‐acrylic acid polymers |
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| Authors: | Jing Li Xia Zhang Jian Chen Jun Xia Meihu Ma Bin Li |
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| Affiliation: | 1. College of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, China;2. Department of Food Science and Technology, South China University of Technology, Guangzhou, Guangdong 510640, China |
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| Abstract: | Konjac glucomannan‐graft‐acrylic acid polymers, used as superabsorbent polymers (SAPs), were synthesized by frontal polymerization (FP). The features of front propagation including front velocity and maximum temperature (Tmax) were influenced by the amount of glucomannan, initiator, and environment temperature. The graft copolymer was characterized by FTIR, DSC, and SEM. The amount of crosslinking agent mainly determined the crosslinking degree of SAPs that would affect the water absorbency and microstructure. Water absorbency of SAP was also investigated and most of them displayed high water absorption rate. The aforementioned results allow us to conclude that FP can be considered as a promising method to fabricate SAP for its excellent advantages. © 2009 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 47: 3391–3398, 2009 |
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| Keywords: | acrylic acid frontal polymerization graft copolymers konjac glucomannan monomers polysaccharides superabsorbent polymer synthesis thermal properties |
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