Stabilizing Liquids Using Interfacial Supramolecular Polymerization

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 H6TPP...

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Bibliographic Details
Published in:Angewandte Chemie (International ed.) 2019-08, Vol.58 (35), p.12112-12116
Main Authors: Gu, Pei‐Yang, Chai, Yu, Hou, Honghao, Xie, Ganhua, Jiang, Yufeng, Xu, Qing‐Feng, Liu, Feng, Ashby, Paul D., Lu, Jian‐Mei, Russell, Thomas P.
Format: Article
Language:English
Subjects:
Compression
Electrostatic properties
Hydrophobicity
in situ AFM
INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
interface assembly
Liquids
Mud-water interfaces
Oil
Polymerization
Polymers
porphyrins
structure liquid
Supramolecular polymers
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Summary: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. A supramolecular polymer surfactant (SPS) mit H6TPPS at the interface has a binding energy that is sufficiently strong to form a structuring liquid. This opens a route to kinetically trap liquids in non‐equilibrium shapes. The elastic film, comprised of SPSs, wrinkles upon compression, providing a strategy to stabilize the liquids.
ISSN:1433-7851
1521-3773
DOI:10.1002/anie.201906339