Surfactant-Induced Interfacial Aggregation of Porphyrins for Structuring Color-Tunable Liquids
Pei-Yang Gu1,2, Ganhua Xie2, Paul Y. Kim2, Yu Chai2,3, Xuefei Wu5, Yufeng Jiang2, Qing-Feng Xu1, Feng Liu4, Jian-Mei Lu1,*（路建美）, and Thomas P. Russell2,5,*
1College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation, Center of Suzhou Nano Science and Technology, Soochow University，Suzhou 215123 (China)
2Materials Sciences Division, Lawrence Berkeley National Laboratory，1 Cyclotron Road, Berkeley, CA 94720 (USA)
3Molecular Foundry, Lawrence Berkeley National Laboratory，1 Cyclotron Road, Berkeley, CA 94720 (USA)
4Department of Physics and Astronomy, Collaborative Innovation Center of IFSA (CICIFSA), Shanghai Jiaotong University，Shanghai 200240 (P. R. China)
5Polymer Science and Engineering Department, University of Mas，sachusetts Amherst, MA 01003 (USA) and Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology，Beijing 100029 (China)
Angew. Chem. Int. Ed.2021, 60, 2871--2876
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 (H6TPPS) 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 H6TPPS, specifically H4TPPS2− 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 H4TPPS2− 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 H4TPPS2−. Subsequently, the SPSs formed can lock in nonequilibrium shapes of liquids.
链接：https://onlinelibrary.wiley.com/doi/epdf/10.1002/anie.202012742