关键词: 超分子凝胶/
介观结构/
晶体网络/
组装
English Abstract
Supramolecular gels and mesoscopic structure
Lin Nai-Bo1,2,Lin You-Hui1,
Huang Qiao-Ling1,
Liu Xiang-Yang2,1
1.Research Institute for Biomimetics and Soft Matter, Fujian Provincial Key Laboratory for Soft Functional Materials Research, College of Mateirals, College of Physical Science and Technology, Xiamen University, Xiamen 361005, China;
2.Department of Physics, National University of Singapore, 117542 Singapore
Fund Project:Project supported by the 111 Project (Grant No. B16029), National Natural Science Foundation of China (Grant Nos. 21404087, U1405226, 21401154), the National High Technology Research and Development Program, China (Grant No.2011AA06Z228) Fujian Provincial Department of Science and Technology, China (Grant Nos. 2014H6022, 2015J05109), Natural Science Foundation of Guangdong Province, China (Grant Nos. 2015A030310007, 2014A030310005), 1000 Talents Program, and President Foundation from Xiamen University, China (Grant Nos. 20720160088, 20720150218, 20720140528).Received Date:22 April 2016
Accepted Date:26 May 2016
Published Online:05 September 2016
Abstract:From the perspective of mesoscale, the formation mechanism of crystal network structure of supramolecular gel, the influence of structure on macroscopic properties, and the design and control of supramolecular gels are reviewed Crystal network is a key character of the hierarchical structure of the gel, the formations of the basic and multi-level crystal networks are based on the crystal nucleation and growth. The engineering and controlling of the gel structure can be implemented by various stimuli, such as additives, sonication, seeding, and thermodynamic driving force, which leads to a controllable performance of the gel In addition, the methods of characterizing supramolecular gels are systematically summarized, such as, rheology, atomic force microscope, scanning tunnel microscope, scanning electron microscope, transmission electron microscope, polarizing optical microscope, X-ray diffraction, small-angle X-ray scattering, small-angle neutron scattering, nuclear magnetic resonance spectroscopy, dynamic light scattering etc. Supramolecular gel performance is determined by the hierarchy mesoscopic structures, which can significantly improve the properties of the material. Four factors can be correlated to the structure and performance of material: topology, correlation length, symmetry/ordering, and strength of association of crystal networks. According to the more in-depth understanding of mesoscopic supramolecular gels, the research and development of such a material will be pushed to a new stage.
Keywords: supramolecular gels/
mesoscopic structure/
crystal network/
assembly
