Surfactant-Induced Interfacial Aggregation of Porphyrins for Structuring Color-Tunable Liquids

Pei-Yang Gu; Ganhua Xie; Paul Y Kim; Yu Chai; Xuefei Wu; Yufeng Jiang; Qing-Feng Xu; Feng Liu; Jian-Mei Lu; Thomas P Russell

doi:10.1002/anie.202012742

Surfactant-Induced Interfacial Aggregation of Porphyrins for Structuring Color-Tunable Liquids

Angew Chem Int Ed Engl. 2021 Feb 8;60(6):2871-2876. doi: 10.1002/anie.202012742. Epub 2020 Dec 9.

Authors

Pei-Yang Gu^{1

2}, Ganhua Xie², Paul Y Kim², Yu Chai^{2

3}, Xuefei Wu^{2

4

5}, Yufeng Jiang², Qing-Feng Xu¹, Feng Liu⁶, Jian-Mei Lu¹, Thomas P Russell^{2

4

5}

Affiliations

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 Polymer Science and Engineering Department, University of Massachusetts, Amherst, MA, 01003, USA.
⁵ Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, China.
⁶ Department of Physics and Astronomy, Collaborative Innovation Center of IFSA (CICIFSA), Shanghai Jiaotong University, Shanghai, 200240, P. R. China.

PMID: 33111473
DOI: 10.1002/anie.202012742

Abstract

Locking nonequilibrium shapes of liquids into targeted architectures by interfacial jamming of nanoparticles is an emerging area in material science. 5,10,15,20-tetrakis(4-sulfonatophenyl) porphyrin (H₆ TPPS) shows three different aggregation states that present an absorption imaging platform to monitor the assembly and jamming of supramolecular polymer surfactants (SPSs) at the liquid/liquid interface. The interfacial interconversion of H₆ TPPS, specifically H₄ TPPS^2- dissolved in water, from J- to an H-aggregation was induced by strong electrostatic interactions with amine-terminated polystyrene dissolved in toluene at the water/toluene interface. This resulted in color-tunable liquids due to interfacial jamming of the SPSs formed between H₄ TPPS^2- and amine-terminated polystyrene. However, the formed SPSs cannot lock in nonequilibrium shapes of liquids. In addition, a self-wrinkling behavior was observed when amphiphilic triblock copolymers of PS-block-poly(2-vinylpyridine)-block-poly(ethylene oxide) were used to interact with H₄ TPPS^2- . Subsequently, the SPSs formed can lock in nonequilibrium shapes of liquids.

Keywords: interfacial assembly; interfacial interconversion; multicolor; porphyrin; structure liquid.

Abstract

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