Uniform Nanorods with Regioselective Distribution of Inorganic Nanoparticles Templated by 2D Block Copolymer Nanosheets,ACS Macro Letters

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Uniform Nanorods with Regioselective Distribution of Inorganic Nanoparticles Templated by 2D Block Copolymer Nanosheets
ACS Macro Letters ( IF 5.1 ) Pub Date : 2022-04-01 , DOI: 10.1021/acsmacrolett.1c00791
Xuejie Liu _{1,

2} , Jinlan Li _{1,

2} , Nan Yan ₁ , Wei Jiang _{1,

2}

Affiliation

The inorganic/organic hybrid materials with regioselective distribution of functional inorganic nanoparticles (NPs) have received constant interest attributed to fascinating integrated properties. However, there remains a formidable challenge in realizing the regioselective distribution of NPs for the specific hybrid nanorods. Herein, we report the construction of uniform core–shell hybrid nanorods with the regioselective distribution of inorganic NPs by selectively disassembling the prepared NPs/polystyrene-block-poly(4-vinylpyridine) (PS-b-P4VP) hybrid nanosheets. Moreover, through precisely adjusting the parameters, such as complexation ability between the metal precursor and P4VP blocks, the protonation degree of P4VP blocks and complexation time, the NPs/polymer core–shell hybrid nanorod with the uniform distribution of NPs, and dumbbell-like hybrid nanorods with selective distribution of NPs at both ends can be obtained. This finding reveals a unique insight into the design of the anisotropic functional hybrid materials with the regioselective distribution of inorganic NPs.

中文翻译：

由二维嵌段共聚物纳米片模板化的具有区域选择性分布的无机纳米粒子的均匀纳米棒

具有功能性无机纳米粒子（NPs）区域选择性分布的无机/有机杂化材料由于令人着迷的综合特性而受到了持续的关注。然而，在实现特定杂化纳米棒的 NPs 的区域选择性分布方面仍然存在巨大的挑战。在此，我们报告了通过选择性分解制备的 NPs/聚苯乙烯嵌段聚（4-乙烯基吡啶）（PS- b-P4VP) 杂化纳米片。此外，通过精确调节金属前驱体与P4VP嵌段的络合能力、P4VP嵌段的质子化程度和络合时间等参数，得到了NPs分布均匀的NPs/聚合物核-壳杂化纳米棒，并且呈哑铃状。可以得到在两端具有选择性分布的纳米颗粒的杂化纳米棒。这一发现揭示了对具有无机 NP 区域选择性分布的各向异性功能杂化材料设计的独特见解。

更新日期：2022-04-01

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