Sulfone-Modulated Aqueous Polymerization-Induced Self-Assembly: Tailoring Adaptive Nanostructures via Competing Supramolecular Interactions

IF 3.7 2区化学 Q2 CHEMISTRY, MULTIDISCIPLINARY

Langmuir Pub Date : 2025-04-09 DOI:10.1021/acs.langmuir.5c00721

Tiancheng Xia, Tinghao Zhang, Meng Huo

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Abstract

The integration of supramolecular chemistry with polymerization-induced self-assembly (PISA) offers a promising avenue to advance the design and functionality of nanomaterials. Here, we elucidate the role of sulfone bonding in aqueous block copolymer (BCP) self-assembly by evaluating the aqueous PISA behaviors of sulfone-functionalized BCPs and the stimuli-responsive properties of the resulting assemblies. A series of 2-(alkylsulfonyl)ethyl acrylamides were designed for aqueous PISA, in which the sulfone moiety not only enhances monomer water solubility but also stabilizes polymer assemblies through sulfone bonding. Systematic variation of the alkyl tail revealed distinct PISA behaviors, where shorter tails favored sulfone-bond-dominated assembly, while longer tails introduced competitive hydrophobic interactions. This interplay between sulfone bonding and hydrophobicity enabled the fabrication of polymer assemblies with programmable ion-responsive morphology transitions. Our findings provide fundamental insights into the role of supramolecular interactions in PISA and establish a versatile strategy for engineering adaptive nanomaterials.

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超分子化学与聚合诱导自组装（PISA）的结合为推进纳米材料的设计和功能提供了一条前景广阔的途径。在这里，我们通过评估砜官能化 BCP 的水性 PISA 行为以及由此产生的组装体的刺激响应特性，阐明了砜键在水性嵌段共聚物（BCP）自组装中的作用。我们设计了一系列用于水性 PISA 的 2-(烷基磺酰基)乙基丙烯酰胺，其中的砜基不仅能提高单体的水溶性，还能通过砜键稳定聚合物组装体。烷基尾部的系统变化显示了不同的 PISA 行为，较短的尾部有利于以砜键为主的组装，而较长的尾部则会产生竞争性的疏水相互作用。砜键和疏水性之间的这种相互作用使我们能够制造出具有可编程离子响应形态转变的聚合物组装体。我们的研究结果从根本上揭示了超分子相互作用在 PISA 中的作用，并为自适应纳米材料的工程设计提供了一种多功能策略。

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来源期刊

Langmuir 化学-材料科学：综合

CiteScore

6.50

自引率

10.30%

发文量

1464

审稿时长

2.1 months

期刊介绍： Langmuir is an interdisciplinary journal publishing articles in the following subject categories: Colloids: surfactants and self-assembly, dispersions, emulsions, foams Interfaces: adsorption, reactions, films, forces Biological Interfaces: biocolloids, biomolecular and biomimetic materials Materials: nano- and mesostructured materials, polymers, gels, liquid crystals Electrochemistry: interfacial charge transfer, charge transport, electrocatalysis, electrokinetic phenomena, bioelectrochemistry Devices and Applications: sensors, fluidics, patterning, catalysis, photonic crystals However, when high-impact, original work is submitted that does not fit within the above categories, decisions to accept or decline such papers will be based on one criteria: What Would Irving Do? Langmuir ranks #2 in citations out of 136 journals in the category of Physical Chemistry with 113,157 total citations. The journal received an Impact Factor of 4.384*. This journal is also indexed in the categories of Materials Science (ranked #1) and Multidisciplinary Chemistry (ranked #5).