Mechanism of Polymerization and Structure Characterization of Polyetherified Derivative of Theasaponins

YANG Zhong-ming; ZHANG Ming; DING Zhi; ZHOU Yu-cheng; ZHU Xiao-bing; QI Wei-xin; HU Bing

doi:10.13305/j.cnki.jts.2006.02.003

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Journal of Tea Science ›› 2006, Vol. 26 ›› Issue (2) : 91-95. DOI: 10.13305/j.cnki.jts.2006.02.003

Mechanism of Polymerization and Structure Characterization of Polyetherified Derivative of Theasaponins

YANG Zhong-ming¹, ZHANG Ming¹, DING Zhi¹, ZHOU Yu-cheng², ZHU Xiao-bing², QI Wei-xin², HU Bing²

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Abstract

The polymerization of theasaponins and propylene oxide catalyzed by double metal cyanide complex was described by the authors. Via ring-opening polymerization, a new polyetherified 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.

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DMC / double metal cyanide complex / mechanism / theasaponins

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YANG Zhong-ming, ZHANG Ming, DING Zhi, ZHOU Yu-cheng, ZHU Xiao-bing, QI Wei-xin, HU Bing. Mechanism of Polymerization and Structure Characterization of Polyetherified Derivative of Theasaponins[J]. Journal of Tea Science. 2006, 26(2): 91-95 https://doi.org/10.13305/j.cnki.jts.2006.02.003

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