聚合物接枝纳米粒子的三维组装：结构多样性的软约束

IF 5.2 1区化学 Q1 POLYMER SCIENCE

Macromolecules Pub Date : 2025-02-23 DOI:10.1021/acs.macromol.4c02709

Meng Xu, Zhengping Tan, Galim Baek, Gila E. Stein, Hongseok Yun, Bumjoon J. Kim

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引用次数: 0

摘要

聚合物接枝纳米粒子（PGNPs）将聚合物刷的柔性构象和化学多样性与无机核心的可修饰性相结合，为构建先进的纳米结构提供了一个通用的平台。与传统的硬NPs相比，PGNPs具有独特的组装行为，这是由其自适应的聚合物刷构象和可调的表面特性驱动的。三维软约束的引入进一步扩大了PGNP组件的结构多样性。从这个角度来看，我们探索了水包油乳剂中的三维软约束如何通过界面上复杂的焓和熵相互作用指导PGNP组装，从而产生独特的自组装结构。首先，我们讨论了聚合物电刷驱动的熵和焓相互作用如何引导薄膜组装，这同样影响了3D系统中的PGNP组织。然后，我们研究了三维受限水包油乳液体系，其中液滴表面的界面相互作用通过操纵PGNPs和其他组装成分的构象和方向来产生结构复杂性。最后，本展望提出了通过三维受限PGNP组装设计多功能材料的新机会和未来方向，并在光学，催化和生物医学方面有应用。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

3D Assembly of Polymer-Grafted Nanoparticles: Soft Confinement for Structural Diversity

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3D Assembly of Polymer-Grafted Nanoparticles: Soft Confinement for Structural Diversity

Polymer-grafted nanoparticles (PGNPs) combine the flexible conformation and chemical diversity of polymer brushes with the modifiable properties of inorganic cores, offering a versatile platform for constructing advanced nanostructures. Compared to traditional hard NPs, PGNPs show unique assembly behavior driven by their adaptable polymer brush conformations and tunable surface properties. Introducing three-dimensional (3D) soft confinement further expands the structural diversity of PGNP assemblies. In this Perspective, we explore how 3D soft confinement within oil-in-water emulsions directs PGNP assembly through complex enthalpic and entropic interactions at interfaces, resulting in unique self-assembled structures. First, we discuss how polymer brush-driven entropic and enthalpic interactions guide film assemblies, which similarly affect PGNP organization in 3D systems. Then, we examine 3D confined oil-in-water emulsion systems, where interfacial interactions at droplet surfaces create structural complexity by manipulating the conformation and orientation of PGNPs and other assembly constituents. Finally, this Perspective presents new opportunities and future directions for designing multifunctional materials through 3D confined PGNP assembly, with applications in optics, catalysis, and biomedicine.

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来源期刊

Macromolecules 工程技术-高分子科学

CiteScore

9.30

自引率

16.40%

发文量

942

审稿时长

2 months

期刊介绍： Macromolecules publishes original, fundamental, and impactful research on all aspects of polymer science. Topics of interest include synthesis (e.g., controlled polymerizations, polymerization catalysis, post polymerization modification, new monomer structures and polymer architectures, and polymerization mechanisms/kinetics analysis); phase behavior, thermodynamics, dynamic, and ordering/disordering phenomena (e.g., self-assembly, gelation, crystallization, solution/melt/solid-state characteristics); structure and properties (e.g., mechanical and rheological properties, surface/interfacial characteristics, electronic and transport properties); new state of the art characterization (e.g., spectroscopy, scattering, microscopy, rheology), simulation (e.g., Monte Carlo, molecular dynamics, multi-scale/coarse-grained modeling), and theoretical methods. Renewable/sustainable polymers, polymer networks, responsive polymers, electro-, magneto- and opto-active macromolecules, inorganic polymers, charge-transporting polymers (ion-containing, semiconducting, and conducting), nanostructured polymers, and polymer composites are also of interest. Typical papers published in Macromolecules showcase important and innovative concepts, experimental methods/observations, and theoretical/computational approaches that demonstrate a fundamental advance in the understanding of polymers.