β-环糊精修饰的聚酰胺-胺树状大分子的合成及其对β-萘酚的包合作用  

Synthesis of Polyamidomine Dendrimer Modified by β-cyclodextrin and Its Inclusion Complexation with β-naphthol

作　　者：姜超[1] 周密[1] 钱欣[1] 陈枫[1] 

机构地区：[1]浙江工业大学化学工程与材料学院,杭州310014

出　　处：《科技通报》2012年第3期100-104,共5页Bulletin of Science and Technology

基　　金：浙江省教育厅科技项目

摘　　要：通过对半代聚酰胺-胺树状大分子(PAMAM)表面酯基的胺基化反应合成了由β-环糊精修饰的树状聚酰胺-胺(PAMAM-β-CD),并通过红外光谱、核磁共振氢谱等手段对其进行了分子结构表征。为研究外围修饰的β-环糊精包合小分子的性质,采用紫外-可见光光谱测试了β-萘酚在不同PA-MAM-β-CD浓度水溶液中的紫外吸收光谱。结果表明:在修饰β-环糊精的PAMAM水溶液中,β-萘酚的紫外吸光度随主体分子浓度的变化呈现了不同区域的两种相反递变,这种规律性变化源于β-环糊精空腔高电子云密度的诱导作用。The Polyamidomine （PAMAM） dendrimer modified by fl-cyclodextrin was synthesized by amination reaction on the surface ester of half-generation PAMAM ,and the molecular structure was characterized by 1H-NMR and YF-IR. In order to study the Inclusion complexation properties of peripheral β-cyclodextrin with β-naphthol,a series of β-naphthol samples in increasing concentration of PAMAM-β-CD aqueous solution were investigated by UV-Visible spectra. It was found that the UV absorbance of fl-naphthol showed opposite gradual change in different wavelength area with the change of the concentration of host molecules, and the regularity changes were coming from the induction of the high electron density in β-cyclodextrin cavities.

关 键 词：聚酰胺-胺树状大分子 Β-环糊精 包含络合作用 

分 类 号：TQ328.4[化学工程—合成树脂塑料工业]