摘要
本文首先应用拉曼光谱对柿树叶进行表征 ,发现特征峰主要在 2 90 6、16 0 7、15 2 5和 115 6cm-1。然后根据Washburn的浸渍理论 (PenetrationTheory)、vanOss Chaudhury Good的组合理论 (CombiningRules)及应用柱状灯芯技术 (ColumnWickingTechnique)对柿树叶表面性能进行了分析。发现柿树叶有较大的表面能 ,而表面能的主要成分是Lifshitz vanderWaals力 ,约占 84 %。柿树叶中Lewis酸和Lewis碱之比 (酸碱比 )约为 0 .0 16。
Persimmon leaves have been characterized by the FT-Raman spectrum. Of which four intensive peaks might be the major characters of persimmon leaves. Successively by applying the column wicking technique and the theories of Washburn and van Oss-Chaudhury-Good,the surface free energy and relate the Lifshitz-van der Waals as well as Lewis acid and Lewis base components were also estimated. The results demonstrated that persimmon leaves possess great surface free energy,84% of which is the Lifshitz-van der Waals component. In the leaves the ration of the Lewis acid and the Lewis base is ca. 0.016.
出处
《天然产物研究与开发》
CAS
CSCD
2004年第2期163-166,共4页
Natural Product Research and Development
基金
国家教育部归国留学人员基金项目
关键词
柿树
叶
拉曼光谱
表面能
柱状灯芯技术
persimmon leaves
FT-Raman spectrum
surface free energy and related components
column wicking technique
