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Synergistic coassembly of two structurally different molecular gelators

Chen, Jing-Yu, Yuan, Bing, Li, Zhen-Yu, Tang, Bin, Gupta, Akhil, Bhosale, Sheshanath-Vishwanath and Li, Jing-Liang 2016, Synergistic coassembly of two structurally different molecular gelators, Langmuir, vol. 32, no. 46, pp. 12175-12183, doi: 10.1021/acs.langmuir.6b03527.

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Title Synergistic coassembly of two structurally different molecular gelators
Author(s) Chen, Jing-Yu
Yuan, Bing
Li, Zhen-Yu
Tang, BinORCID iD for Tang, Bin orcid.org/0000-0001-7111-8223
Gupta, AkhilORCID iD for Gupta, Akhil orcid.org/0000-0002-1257-8104
Bhosale, Sheshanath-Vishwanath
Li, Jing-LiangORCID iD for Li, Jing-Liang orcid.org/0000-0003-0709-2246
Journal name Langmuir
Volume number 32
Issue number 46
Start page 12175
End page 12183
Total pages 9
Publisher American Chemical Society
Place of publication Washington, D.C.
Publication date 2016
ISSN 0743-7463
1520-5827
Summary Coassembly of molecules can produce materials with improved properties and functionalities. To this end, achieving a molecular level understanding of the interactions governing the coassembly is essential. In this work, two molecular gelators with significantly different structures and main intermolecular forces for assembly were coassembled. The elastic moduli of the hybrid gels are more than 1 order of magnitude higher than those of the gels formed by the individual gelators, showing an obvious synergistic effect. The interactions between the gelators were investigated with confocal microscopy and both one-dimensional and two-dimensional nuclear magnetic resonance. It was found that the two gelators coassemble to form fibers due to the nonspecific van der Waals interactions between their alkyl chains and the specific interactions between their functional groups. Switching from one gelator-dominated fiber network to the other gelator-dominated fiber network was achieved at a critical molar ratio of the gelators. The two gelators serve as additives of each other to tune the nucleation and growth of the fiber networks. The observations of this work are significant to the development of materials with improved properties by coassembly of different molecules.
Language eng
DOI 10.1021/acs.langmuir.6b03527
Field of Research 030306 Synthesis of Materials
091209 Polymers and Plastics
091299 Materials Engineering not elsewhere classified
Socio Economic Objective 970109 Expanding Knowledge in Engineering
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Grant ID FT130100057
IHI40100018
LE110100141
Copyright notice ©2016, American Chemical Society
Persistent URL http://hdl.handle.net/10536/DRO/DU:30090157

Document type: Journal Article
Collection: School of Engineering
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