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以不同浓度硫酸交联的壳聚糖干膜为研究对象，在国内首次采用13CCPMASNMR技术从分子水平上对壳聚糖膜的结构进行研究，结果表明干膜壳聚糖分子的构象能直观地反映出膜的交联状况，交联状况与膜的分离性能密切相关，但仅对干膜的考察还不够全面．
With different concentrations of sulfuric acid crosslinked chitosan dry film as the research object, the first time in China using 13CCPMASNMR technology molecular structure of the chitosan membrane, the results show that the conformation of the dry film chitosan molecules can be intuitively reflected The cross-linking conditions of the film, the cross-linking conditions and the separation performance of the film are closely related, but only the study of dry film is not comprehensive enough.