Synthesis, Characterization, and Enzymatic Degradation of Chitosan/PEG Hydrogel Films
Synthesis, Characterization, and Enzymatic Degradation of Chitosan/PEG Hydrogel Films
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DOI：
10.1002/app.34278
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发表时间：
2011-11-05
影响因子：
3
通讯作者：
Yurdakoc, Kadir
中科院分区：
文献类型：
--
作者：
Altinisik, Aylin;Yurdakoc, Kadir
制备了聚乙二醇（PEG）/酒石酸（TA）交联壳聚糖水凝胶（CPT）膜，并通过傅立叶变换红外光谱（FTIR）、核磁共振（NMR）和扫描电子显微镜（SEM）表征了PEG/TA交联结构的形成。用热重分析（TGA）和差示扫描量热仪（DSC）分析了交联膜的热性能。研究了膜在不同温度和pH值下的溶胀性能。结果表明，溶胀率随周围缓冲溶液pH值的降低、PEG用量的减少和温度的升高而增大。PEG/TA交联壳聚糖水凝胶膜的溶胀行为依赖于pH值，并随温度可逆。(C)2011 Wiley Periodicals，Inc. J Appl Polym Sci 122：1556-1563，2011
Poly(ethyleneglycol) (PEG)/tartaric acid (TA)-crosslinked chitosan hydrogel (CPT) films were prepared, and the formation of the PEG/TA-crosslinked structure was confirmed by Fourier transformed infrared (FTIR), nuclear magnetic resonance (NMR), and scanning electron microscope (SEM) measurements. The thermal properties of the crosslinked films were also determined with thermogravimetric analysis (TGA) and differential scanning calorimeter (DSC) analysis. The swelling properties of the films were investigated at different temperature and pH values. It was found that the swelling ratio increased with the decrease of pH value of the surrounding buffer solutions, amount of PEG, and with the increase of temperature. Swelling behavior of the PEG/TA-crosslinked chitosan hydrogel films depended on pH and reversible with the temperature. (C) 2011 Wiley Periodicals, Inc. J Appl Polym Sci 122: 1556-1563, 2011