具有聚乙二醇侧链的壳聚糖衍生物的制备，用于无需特定加工技术的多孔结构。
Preparation of chitosan derivative with polyethylene glycol side chains for porous structure without specific processing technique.
作者信息
Huang Meifang, Liu Li, Zhang Guobin, Yuan Guangbi, Fang Yue'e
机构信息
Department of Polymer Science and Engineering, University of Science and Technology of China, Jinzhai Lu 96#, Hefei, Anhui 230026, People's Republic of China.
出版信息
Int J Biol Macromol. 2006 May 30;38(3-5):191-6. doi: 10.1016/j.ijbiomac.2006.02.008. Epub 2006 Feb 23.
The graft copolymer, chitosan-g-polyethylene glycol (PEG), was prepared through graft polymerization of PEG chains to chitosan due to the esterification reaction between PEG and 6-O-succinate-N-phthaloyl-chitosan (PHCSSA). The graft copolymer with porous structure was observed from scanning electron micrographs. It is a potential method to combine chitosan with the hydrophilic synthetic polymers. The graft reaction was carried out in homogeneous system and yielded copolymers with high grafting content. FTIR, NMR, XRD, DSC, spectrofluorophotometer and SEM were detected to characterize the copolymer.
接枝共聚物壳聚糖 - g - 聚乙二醇（PEG）是通过PEG链与壳聚糖的接枝聚合反应制备的，该反应是由于PEG与6 - O - 琥珀酸 - N - 邻苯二甲酰 - 壳聚糖（PHCSSA）之间的酯化反应。从扫描电子显微镜照片中观察到具有多孔结构的接枝共聚物。这是将壳聚糖与亲水性合成聚合物结合的一种潜在方法。接枝反应在均相体系中进行，并得到具有高接枝含量的共聚物。通过傅里叶变换红外光谱（FTIR）、核磁共振（NMR）、X射线衍射（XRD）、差示扫描量热法（DSC）、荧光分光光度计和扫描电子显微镜（SEM）对共聚物进行表征。
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