journal article·2024-02-05

Starlike Copolymer Nanoreactors for the Controlled Preparation of Highly Uniform Liquid Metal Nanoparticles

Linan Wang, Yefei Ma, Yuancheng Zhang, Xiaomeng Zhang, Zhe Cui, Peng Fu, Minying Liu, Ge Shi, Xiaoguang Qiao, Yanjie He, Xinchang Pang

ACS Materials Letters· Volume 6· Issue 2
Publisher page

Abstract

Liquid-metal nanoparticles (LM NPs) are highly promising for diverse applications, including thermal management, flexible electronics, etc. However, controlled preparation of colloidal LM NPs with a narrow size distribution and small diameter via conventional methods was still challenging. Herein, we reported a robust route to fabricate highly uniform gallium/indium (EGaIn) NPs utilizing starlike poly(4-vinylpyridine)- b -polystyrene (P4VP- b -PS) copolymers as nanoreactors. Ultrafine EGaIn nanodroplets caused by ultrasonication diffused into the inner blocks of copolymer nanoreactors and were anchored to P4VP blocks, because of the coordination ability of pyridine groups, eventually forming nanoparticles in nanoreactors. Judiciously designed copolymer nanoreactors not only enabled efficient nanoparticle size manipulation but also endowed nanoparticles with superior colloidal stability due to outer PS blocks. In addition, EGaIn NPs exhibited an interesting size-dependent photothermal conversion property and enhanced catalytic property for atom transfer radical polymerization (ATRP) compared to bulk EGaIn, suggesting their great potential in plasmonic and catalytic applications.
Source: openalex_inverted_index · Quality: baseline

Research context

OpenAlex topics: Pickering emulsions and particle stabilization · Block Copolymer Self-Assembly · Gold and Silver Nanoparticles Synthesis and Applications

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Henan Joint International Research Laboratory of Living Polymerizations and Functional Nanomaterials, Henan Key Laboratory of Advanced Nylon Materials and Application, School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China

College of Materials Engineering, Henan International Joint Laboratory of Rare Earth Composite Materials, Henan Engineering Technology Research Center for Fiber Preparation and Modification, Henan University of Engineering, Zhengzhou 451191, China

School of Materials Science and Engineering, Henan University of Science and Technology, Luoyang 471023, China

Funding

Natural Science Foundation of Henan Province · National Key Research and Development Program of China · China Postdoctoral Science Foundation · National Natural Science Foundation of China · Higher Education Discipline Innovation Project · Henan Provincial Science and Technology Research Project

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