Anion tuning of chiral bis(urea) low molecular weight gels
Anion tuning of chiral bis(urea) low molecular weight gels
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DOI：
10.1039/c1sm06448g
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发表时间：
2012-01-01
期刊：
影响因子：
3.4
通讯作者：
Steed, Jonathan W.
中科院分区：
文献类型：
--
作者：
Lloyd, Gareth O.;Piepenbrock, Marc-Oliver M.;Steed, Jonathan W.
研究了一系列以S-苯乙基为端基的低聚亚甲基为间隔基的手性双脲类化合物作为低分子量胶凝剂的性能。该系列显示了各种液体的凝胶化，并报道了它们的结构、形态和流变性质。双（脲）化合物也作为超分子主机的阴离子，如氯离子和乙酸根和削弱的凝胶竞争性阴离子络合在这一系列的原型，低分子量的凝胶报道。还描述了使用凝胶混合物的凝胶性质的改性和使用荧光萘基类似物研究的凝胶化过程。
A series of chiral bis(urea) compounds based on oligomethylene spacers with S-phenylethyl end groups have been investigated as low molecular weight gelators. The series shows gelation of a variety of liquids and their structural, morphological and rheological properties are reported. The bis(urea) compounds also act as supramolecular hosts for anions such as chloride and acetate and the weakening of the gels by competitive anion complexation on this series of archetypical, low molecular weight gels is reported. Modification of gel properties using gel mixtures is also described and the gelation process studied using a fluorescent napthyl analogue.