Alkoxy Tail Length Dependence of Gelation Ability and Supramolecular   Chirality of Sugar-Appended Organogelators

doi:10.1021/la101494t

CORC > 北京大学 > 化学与分子工程学院

	Alkoxy Tail Length Dependence of Gelation Ability and Supramolecular Chirality of Sugar-Appended Organogelators
	Cu, Jiaxi ; Zheng, Yijun ; Shen, Zhihao ; Wan, Xinhua
刊名	langmuir
	2010
关键词	MOLECULAR-MASS ORGANOGELATORS ASSEMBLED FIBRILLAR NETWORKS CHOLESTEROL-BASED GELATORS SINGLE-CHAIN AMPHIPHILES INTRINSIC BENDING FORCE ROD-COIL AMPHIPHILES ORGANIC-SOLVENTS INTEGRATED GELATORS RATIONAL DESIGN HELICAL RIBBONS
DOI	10.1021/la101494t
英文摘要	A series of sugar-appended organogelators, 4-(4'-alkoxyphenyl)phenyl-beta-O-D-glucoside (GBCn, where n = 1-12 denotes the number of carbon atom in the tail), are synthesized to elucidate the effect of terminal chain length on their gelation and chiral expression abilities in gels. In the mixture of H(2)O/dioxane (60/40 v/v), GBCn undergoes a phasic evolution of precipitation-solution-gel-precipitation-gel as its tail length increases from n = 1, 2, 3-6, and 7-10 to 11-12, respectively. Helical ribbons are observed in gels, but platelet-like structures are the dominant morphologies in the systems that precipitation happens. Combinatory analyses of microscopic, spectroscopic, and diffraction results reveal that the self-assembly into interdigitated bilayer structures of GBCn is driven by hydrogen bondings of sugar heads, pi-pi interactions of biphenyl rods, and hydrophobic interactions of alkoxy tails. The helical-morphology formation is caused by the significant steric repulsion between chiral moieties on the condition of the disordering or the size of alkoxy chains reaching the threshold of helical twisting and bending.; Chemistry, Multidisciplinary; Chemistry, Physical; Materials Science, Multidisciplinary; SCI(E); EI; PubMed; 3; ARTICLE; 19; 15508-15515; 26
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/150004]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Cu, Jiaxi,Zheng, Yijun,Shen, Zhihao,et al. Alkoxy Tail Length Dependence of Gelation Ability and Supramolecular Chirality of Sugar-Appended Organogelators[J]. langmuir,2010.
APA	Cu, Jiaxi,Zheng, Yijun,Shen, Zhihao,&Wan, Xinhua.(2010).Alkoxy Tail Length Dependence of Gelation Ability and Supramolecular Chirality of Sugar-Appended Organogelators.langmuir.
MLA	Cu, Jiaxi,et al."Alkoxy Tail Length Dependence of Gelation Ability and Supramolecular Chirality of Sugar-Appended Organogelators".langmuir (2010).