ICCAS OpenIR
Tuning the Helicity of Self-Assembled Structure of a Sugar-Based Organogelator by the Proper Choice of Cooling Rate
Cui, Jiaxi; Liu, Anhua; Guan, Yan; Zheng, Jia; Shen, Zhihao; Wan, Xinhua
2010-03-02
Source PublicationLANGMUIR
ISSN0743-7463
Volume26Issue:5Pages:3615-3622
AbstractA novel sugar-appended low-molecular-mass gelator, 4 ''-butoxy-4-hydroxy-p-terphenyl-beta-D-glucoside (BHTG), was synthesized. It formed thermally reversible gels in a variety of aqueous and organic solvents. Three-dimensional networks made up of helical ribbons were observed in the mixture H(2)O/1,4-dioxane (40/60 v/v). The handedness of the ribbons depended on the rate of gel formation. Fast-cooling process led to right-handed ribbons, while slow-cooling process led to left-handed ones. A combinatory analyses of microscopic, spectroscopic, and diffraction techniques revealed that BHTG formed a twisted interdigitated bilayer structure with a d spacing of 3.1 nm in gels through a kinetically controlled nucleation-growth process. There were two kinds of molecular orientations of BHTG in the nuclei, clockwise and anticlockwise. which dictated the growth of ribbons. One was metastable and formed first during the cooling process of gel formation. It was able to gradually transform into the more stable latter one with decreasing temperature, Fast-cooling process did not leave enough time for the nuclei to evolve from transformed to stable state and the ribbons grown from them exhibited right-handedness. However, the metastable nuclei transformed into the stable one when cooled slowly and directed the molecules of BHTG to grow into left-handed aggregates.
DOI10.1021/la903064n
Indexed BySCI
Language英语
WOS IDWOS:000274636900094
PublisherAMER CHEMICAL SOC
Citation statistics
Cited Times:73[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/69906
Collection中国科学院化学研究所
Corresponding AuthorWan, Xinhua
AffiliationPeking Univ, Coll Chem & Mol Engn, Key Lab Polymer Chem & Phys, Beijing Natl Lab Mol Sci,Minist Educ, Beijing 100871, Peoples R China
Recommended Citation
GB/T 7714
Cui, Jiaxi,Liu, Anhua,Guan, Yan,et al. Tuning the Helicity of Self-Assembled Structure of a Sugar-Based Organogelator by the Proper Choice of Cooling Rate[J]. LANGMUIR,2010,26(5):3615-3622.
APA Cui, Jiaxi,Liu, Anhua,Guan, Yan,Zheng, Jia,Shen, Zhihao,&Wan, Xinhua.(2010).Tuning the Helicity of Self-Assembled Structure of a Sugar-Based Organogelator by the Proper Choice of Cooling Rate.LANGMUIR,26(5),3615-3622.
MLA Cui, Jiaxi,et al."Tuning the Helicity of Self-Assembled Structure of a Sugar-Based Organogelator by the Proper Choice of Cooling Rate".LANGMUIR 26.5(2010):3615-3622.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Cui, Jiaxi]'s Articles
[Liu, Anhua]'s Articles
[Guan, Yan]'s Articles
Baidu academic
Similar articles in Baidu academic
[Cui, Jiaxi]'s Articles
[Liu, Anhua]'s Articles
[Guan, Yan]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Cui, Jiaxi]'s Articles
[Liu, Anhua]'s Articles
[Guan, Yan]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.