Synthesis and dynamic mechanical behavior of glucose-mediated poly(ethylene glycol/chitosan) membrane

Authors

  • Jian-Wen Wang,

    Corresponding author
    1. Department of Materials Science and Engineering, National Cheng-Kung University, Tainan 70101, Taiwan, Republic of China
    2. Department of Environmental and Safety Engineering, Chung Hwa College of Medical Technology, Tainan 717, Taiwan, Republic of China
    • Department of Materials Science and Engineering, National Cheng-Kung University, Tainan 70101, Taiwan, Republic of China
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  • Min-Hsiung Hon

    1. Department of Materials Science and Engineering, National Cheng-Kung University, Tainan 70101, Taiwan, Republic of China
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Abstract

The pH-dependent chitosan/PEG membrane was prepared by a surface-mediated process with glucose as a source. Swelling study shows that the glucose-mediated membrane is more stable in a neutral environment than an acidic one and the stability in all soaking environments generally increases with increasing glucose concentration because of an increase in Schiff's reaction product as demonstrated by a mediated degree analysis. DMA analysis shows that as the glucose concentration increases, the rubber plateau of the glucose-mediated membrane is prolonged and keeps a higher storage modulus, and the tangent δ peak shifts to a high temperature as the temperature increases. In an isothermal mode, as the glucose concentration increases to 10 wt %, the storage modulus shows a small change in frequency dependence, indicating that the mediating effect is obviously affected by glucose addition. It can also be found that surface-mediated membrane has a higher complex viscosity than chitosan/PEG membrane at high frequencies. Thus, a new way was found to use glucose to produce stable biomaterial. © 2004 Wiley Periodicals, Inc. J Appl Polym Sci 93: 809–820, 2004

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