茶皂甙合成聚醚反应机理及其衍生物结构表征  

Mechanism of Polymerization and Structure Characterization of Polyetherified Derivative of Theasaponins

作　　者：杨钟鸣[1] 张明[1] 丁志[1] 周玉成 朱小兵 戚渭新 胡兵 

机构地区：[1]中国农业科学院茶叶研究所,浙江杭州310008 [2]金陵石化研究院,江苏南京210046

出　　处：《茶叶科学》2006年第2期91-94,107,共5页Journal of Tea Science

基　　金：浙江省自然科学基金资助项目(302099)

摘　　要：在双金属氰化物络合催化剂(DMC)作用下,茶皂甙与环氧丙烷开环聚合,在不破坏茶皂甙活性五元环的前提下,合成亲油性的茶皂甙聚醚衍生物。本文初步探讨了茶皂甙聚醚反应的机理,并用FTIR、NMR对聚醚进行了结构分析表征。结果表明,聚醚的序列结构以头-尾相连为主且呈无规立构分布的特点。The polymerization of theasaponins and propylene oxide catalyzed by double metal cyanide complex was described by the authors. Via ring-opening polymerization, a new polyethedfied derivative of theasaponins which has perfect lipophilicity was obtained and the mechanism of polymerization was discussed. The structure of polyether was analyzed and characterized by FTIR and NMR. Results showed that head-tail addition and atactic structure were dominant in polyether microstructure.

关 键 词：茶皂甙 双金属氰化物络合催化剂 DMC 机理 结构分析表征 

分 类 号：O631.3[理学—高分子化学]