详细信息
文献类型:期刊文献
中文题名:L-半胱氨酸改性壳聚糖的合成与表征
英文题名:Synthesize and characterization of L-cysteine modified chitosan
作者:吴晓萍[1];梁鹏[1];章超桦[1];杨捷[2];廖艳[2];吴育廉[2]
机构:[1]广东海洋大学食品科技学院,广东湛江524000;[2]广东海洋大学现代生物化学实验中心,广东湛江524000
年份:2010
卷号:41
期号:A01
起止页码:172
中文期刊名:功能材料
外文期刊名:Journal of Functional Materials
收录:CSTPCD、、EI(收录号:20102913085943)、Scopus(收录号:2-s2.0-77954684361)、CSCD2011_2012、北大核心2008、北大核心、CSCD
基金:农业部"948"资助项目(2006-G42)
语种:中文
中文关键词:壳聚糖;L-半胱氨酸;表征
外文关键词:chitosan; L-cysteine; characterization
中文摘要:以壳聚糖和L-半胱氨酸为原料,利用戊二醛与壳聚糖发生Shiff碱反应,并与环氧氯丙烷发生交联反应,最后将L-半胱氨酸成功接枝到中间产物,合成L-半胱氨酸改性壳聚糖。利用红外光谱(IR)、X射线衍射(XRD)、元素分析、扫描电镜(SEM)、热重分析(TG)等对合成产物进行了表征。结果表明,改性后衍生物有较好的吸附孔径,热失重率下降,热稳定性能得到提高,且合成产物不溶解于酸性溶液和常用的极性溶剂。
外文摘要:The Shiff reaction was occurred between chitosan and glutaraldehyde,and cross-linking reaction was took place with epichlorohydrin,finally the L-cysteine was grafted to the intermediate product successfully.The synthesized products were characterized through using infrared spectroscopy(IR),X-ray diffraction(XRD),elemental analysis,scanning electron microscopy(SEM) and thermogravimetry(TG).The results showed the modified product had a better absorption aperture.Their heat stability was improved and the synthetic product was not dissolved in acidic solution and common polarity solvent.
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