Solvent-tuned multiple self-assembly of a new sugar-appended gelator
Solvent-tuned multiple self-assembly of a new sugar-appended gelator
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新型加糖胶凝剂的溶剂调节多重自组装
DOI：
10.1016/j.jcis.2008.07.008
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发表时间：
2008-10-01
影响因子：
9.9
通讯作者：
Wan, Xinhua
中科院分区：
文献类型：
--
作者：
Cui, Jiaxi;Zheng, Jia;Wan, Xinhua
合成了低分子质量的4-（4′-丁氧基苯基）苯基- β - o - d -葡萄糖苷凝胶。它能够通过形成三维自组装的纤维网络大量固定各种水和有机溶剂。聚集体的形态取决于形成它们的溶剂的性质。水中以平面带状为主，甲苯以螺旋带状为主，CHCl3以片状为主。d- waxd分析表明，水制备的干凝胶为层状结构，d间距为2.45 nm，为与丁氧基尾部交叉的双层结构，而CHCl3或甲苯制备的干凝胶为层状结构，d间距为3.05 nm，为与糖基头交叉的双层结构。增加水中1,4-二氧六环的含量，使其由平面逐渐转变为扭曲的带状，再转变为管状。(C) 2008爱思唯尔公司版权所有。
4-(4'-Butoxyphenyl)phenyl-beta-O-D-glucoside was synthesized as a low-molecular-mass gelator. It was able to immobilize a variety of aqueous and organic solvents in large amounts through the formation of three-dimensional self-assembled fibrillar networks. The morphologies of the aggregates depended on the nature of solvent where they were formed. Planar ribbons were observed in water, while helical ribbons were dominant in toluene and sheets in CHCl3. The xerogel from water exhibited a lamellar structure with a d-spacing of 2.45 nm as demonstrated by 1D-WAXD, indicating a bilayer structure interdigitated with butoxy tails, whereas the xerogel from CHCl3 or toluene yielded a lamellar structure with a d-spacing of 3.05 nm, implying a bilayer structure interdigitated with glycosyl heads. Increasing the content of 1,4-dioxane in water caused a gradual transformation from planar to twisted ribbons and then tubes. (C) 2008 Elsevier Inc. All rights reserved.