欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
本工作合成了一系列外围以三缩四乙二醇单甲醚修饰的烷基芳醚骨架两亲性树枝形聚合物Gn（n=0-3），化合物通过了^1H—NMR，IR和MALDI—TOF-MS的表征．利用吸收光谱，稳态和时间分辨荧光光谱研究了水溶液中Gn对尼罗红分子的增溶作用以及Gn内部微环境的极性．研究结果表明，高代数树枝形聚合物Gn对尼罗红具有更好的增溶效果．1—3代树枝形聚合物Gn内部疏水孔腔微环境极性随代数增加而逐渐降低，G1和G2树枝形聚合物具有相似的微环境极性，而由于构象的变化使G3具有更加疏水的微环境．
英文摘要：
Amphiphilic poly （alkyl aryl ether） dendrimers with tetraethylene glycol monomethyl ether at their periphery（Gn, n=0-3）, were synthesized by a convergent growth methodology and their structures were characterized by ^1H NMR, IR and mass spectroscopy （MALDI- TOF）. The microenvironment of these dendrimers was studied by using Nile Red as a fluorescence probe. The absorption spectra of Nile Red in water and Gn aqueous solutions indicate that the solubility of Nile Red increases dramatically with the increase of dendrimer generation. The steady state and time resolved fluorescence studies reveal that the microenvironrnent polarity of Gn（n=1-3） decreases with the increase of dendrimer generation. G1 and G2 dendrimers have similar microenvironment polarity, while G3 has a more hydrophobic inner cavity due to its globular structure.
同期刊论文项目
同项目期刊论文
Singlet-Singlet Energy Transfer through an Amidinium-Carboxylate Salt Bridge Interface in Naphthalen
Self-complementary hydrogen-bonded duplexes and helices based on bis(pyrrolyl) carbohydrazide deriva
Pressure induced emission enhancement of a series of dicyanovinyl-substituted aromatics: pressure tu
Exploring Intertrimer Cu…Cu Interactions and Further Phosphorescent Properties of Aryl Trimer Copper
Photophysics and triplet?triplet annihilation analysis for axially substituted gallium phthalocyanin
Synthesis and crystal structures of nickel(II), copper(II) and zinc(II) complexes with a biphenyl-br
A luminescent dinuclear cadmium(II) supramolecular architecture constructed from a metal-organic syn
Multiple fluorescenc △CIE and △RGB codes for sensing volatile organic compounds with a wide range of
Rapid Sensing of Aqueous Fluoride with Two Modes, Violet/Yellow Switch and Off/On Switch, by a Hydro
Two three-dimensional metal–organic frameworks constructed by ultiple building blocks of benzenetric
Synthesis and Structural Chearcterization of 1,2-Bis((1H-pyrrol-2-yl)methylene)hydrazine and its Cu(
Synthesis and Photophysical Properties of Novel Two-photon Absorption Chromophores and Research on I
Tunable Fluorescence Emission and Efficient Energy Transfer in N,N'-di[4-(2'-benzo[d]thiazolyl)-3-hy
Synthesis and third-order optical nonlinearities of nickel complexes of 8-hydroxyquinoline derivativ
Emissive Properties and Aggregation-Induced Emission Enhancement of Excited-State Intramolecular Pro
A Highly Selective Fluorescent Sensor for Fluoride Anion Based on Pyrazole Derivative: Naked Eye “No
Photosensitized Oxidation of Alkenes with Dendrimers as Microreactors: Controllable Selectivity betw
Remote Sensitized Photoisomerization via Through-Bond Triplet-Triplet Energy Transfer Mediated by an
Direct Observation of Singlet-Singlet Energy Transfer Mediated by an Amidinium–Carboxylate Salt Brid
期刊信息
位置：