摘要: Mixed-charge polymer hydrogels were successfully prepared by copolymerization of different ratios of [2-(meth-acryloyloxy) ethyl] trimethylammonium (TMA) and 3-sulfopropyl methacrylate (SA). Then, a second polyacrylamide (PAAM) network was incorporated into the pre-prepared hydrogel to form a double network (DN) hydrogel. The compositions of these DN hydrogels were characterized by Fourier transform infrared spectroscopy (FTIR) and X-ray photoelectron spectroscopy (XPS). Rheological and compressive measurements confirmed that the mechanical performances of the DN hydrogels were significantly improved by incorporation of a second PAAM network, compared with the according single network (SN) hydrogels. The amount of protein absorbed on the DN hydrogel surface was related to the ratio of TMA/SA and the ionic strength. The DN hydrogel with equal amount of TMA and SA exhibited better protein resistance. In addition, Phaeodactylum tricornutum and Chlorella were chosen for the anti-algae assay. The results displayed that the negatively charged hydrogels showed better anti-algae fouling performance than the positively charged and the neutral DN hydrogels. These DN hydrogels have promising applications in marine antifouling coating and interfaces of biomaterials.
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分类:
材料科学
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材料科学(综合)
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引用:
ChinaXiv:201705.00228
(或此版本
ChinaXiv:201705.00228V1)
DOI:10.12074/201705.00228V1
CSTR:32003.36.ChinaXiv.201705.00228.V1
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科创链TXID:
4f48232e-4892-47cc-8109-1c075e1ea87f
- 推荐引用方式:
Jiang, DY [Jiang, Daoyi][ 1 ],Liu, ZX [Liu, Zhixiong][ 1 ],He, XY [He, Xiaoyan][ 1 ],Han, J [Han, Jin][ 1 ],Wu, XD [Wu, Xuedong][ 1 ].Polyacrylamide strengthened mixed-charge hydrogels and their applications in resistance to protein adsorption and algae attachment.null.[ChinaXiv:201705.00228V1]
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