Surfactant‐Induced Interfacial Aggregation of Porphyrins for Structuring Color‐Tunable Liquids,Angewandte Chemie International Edition

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Surfactant‐Induced Interfacial Aggregation of Porphyrins for Structuring Color‐Tunable Liquids
Angewandte Chemie International Edition ( IF 16.1 ) Pub Date : 2020-10-28 , DOI: 10.1002/anie.202012742
Pei‐Yang Gu _{1,

2} , Ganhua Xie ₂ , Paul Y. Kim ₂ , Yu Chai _{2,

3} , Xuefei Wu _{2,

4,

5} , Yufeng Jiang ₂ , Qing‐Feng Xu ₁ , Feng Liu ₆ , Jian‐Mei Lu ₁ , Thomas P. Russell _{2,

4,

5}

Affiliation

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.

中文翻译：

表面活性剂诱导的卟啉界面聚集体用于构造可颜色调节的液体

通过纳米粒子的界面干扰将液体的非平衡形状锁定为目标结构是材料科学中的一个新兴领域。5,10,15,20-四（4-磺酰基苯基）卟啉（H ₆ TPPS）显示三种不同的聚集状态，这些状态提供了一个吸收成像平台来监控液/液界面上超分子聚合物表面活性剂（SPS）的组装和堵塞。H ₆ TPPS，特别是H ₄ TPPS ^2-的界面互变溶解在水中的J-到H-聚集是由与胺/端基聚苯乙烯在水/甲苯界面处溶解在甲苯中的强静电相互作用引起的。由于H ₄ TPPS ²⁻与胺封端的聚苯乙烯之间形成的SPS的界面堵塞，导致产生了颜色可调的液体。但是，形成的SPS不能锁定在液体的非平衡形状中。另外，当PS-的两亲性三嵌段共聚物中观察到的自起皱行为块- （2-乙烯基吡啶） -聚嵌段-聚（环氧乙烷）被用来用H相互作用₄ TPPS ^2-。随后，形成的SPS可以锁定为非平衡形状的液体。

更新日期：2020-10-28

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