Stabilizing Liquids Using Interfacial Supramolecular Polymerization
Pei-Yang Gu1, 2 ,+ , Yu Chai2 , 3 ,+ , Honghao Hou2, Ganhua Xie2, Yufeng Jiang2, Qing-Feng Xu1, Feng Liu4,*（刘烽）,Paul D. Ashby3, Jian-Mei Lu1,*（路建美）, and Thomas P. Russell2 , 5,*
1 College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation, Center of Suzhou Nano Science and Technology, Soochow University Suzhou, 215123 (China)
2 Materials Sciences Division, Lawrence Berkeley National Laboratory 1 Cyclotron Road, Berkeley, CA 94720 (USA)
3 Molecular Foundry, Lawrence Berkeley National Laboratory 1 Cyclotron Road, Berkeley, CA 94720 (USA)
4 Department of Physics and Astronomy, Collaborative Innovation Center of IFSA (CICIFSA), Shanghai Jiaotong University Shanghai 200240 (P. R. China)
5 Polymer Science and Engineering Department University of Massachusetts Amherst, MA 01003 (USA) and Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology Beijing, 100029 (China)
+These authors contributed equally to this work.
Angew. Chem. Int. Ed.2019, 58, 12112--12116
The strong electrostatic interactions at the oil–water interface between a small molecule, 5,10,15,20-tetrakis(4- sulfonatophenyl)porphyrin, H6TPPS, dissolved in water, and an amine terminated hydrophobic polymer dissolved in oil are shown to produce a supramolecular polymer surfactant (SPS) of H6TPPS at the interface with a binding energy that is sufficiently strong to allow an intermolecular aggregation of the supramolecular polymers. SPSs at the oil–water interface are confirmed by in situ real-space atomic force microcopy imaging. The assemblies of these aggregates can jam at the interface, opening a novel route to kinetically trap the liquids in non-equilibrium shapes. The elastic film, comprised of SPSs, wrinkles upon compression, providing a strategy to stabilize liquids in non-equilibrium shapes.
链接：https://onlinelibrary.wiley.com/doi/full/10.1002/anie.201906339