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    Title: Structure characterizations and protein resistance of chitosan membranes selectively crosslinked by poly(ethylene glycol) dimethacrylate
    Authors: Cheng, Chia-Chu;Mi, Fwu-Long;Hsu, Shan-hui;Don, Trong-Ming
    Contributors: 淡江大學化學工程與材料工程學系暨研究所
    Keywords: Chitosan;Poly(ethylene glycol) dimethacrylate;Copolymer membrane;Protein resistance
    Date: 2014-06
    Issue Date: 2014-09-01 02:39:47 (UTC+8)
    Publisher: Dordrecht: Springer Netherlands
    Abstract: Chitosan (CS) is a fragile material with a high modulus of elasticity. Improving its flexibility as well as membrane permeability are the key aspects that need to be addressed for using CS as a biomaterial. Poly(ethylene glycol) (PEG) has several unique properties such as protein resistance, low toxicity, immunogenicity, and good solubility in both water and organic solvents. In this study, a vinyl compound was grafted to the C-6 position of CS by protection-grafting-deprotection. The vinyl CS was then crosslinked with PEG dimethacrylate (PEGDMA) selectively at its C-6 position to form CS-g-PEG copolymer membranes. Analyses from spectra of Fourier-transform infrared and nuclear magnetic resonance confirmed the chemical structure of the crosslinking CS-g-PEG copolymer membranes. Thermal and mechanical properties of the prepared CS-g-PEG membranes were measured and well-correlated to their structures. The incorporation of PEGDMA into the CS increased the material’s flexibility and thermal resistance. Finally, the CS-g-PEG membranes were found to have good protein resistance and blood compatibility; therefore, it has potential application as the biomedical material especially for hemodialysis.
    Relation: Cellulose 21(3), pp.1431-1444
    DOI: 10.1007/s10570-014-0231-5
    Appears in Collections:[化學工程與材料工程學系暨研究所] 期刊論文

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