One-pot synthesis of inorganic nanoparticle vesicles via surface-initiated polymerization-induced self-assembly
One-pot synthesis of inorganic nanoparticle vesicles via surface-initiated polymerization-induced self-assembly
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DOI：
10.1039/c6py01956k
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发表时间：
2017-01
影响因子：
4.6
通讯作者：
Yang Zheng;Yucheng Huang;Zaid M. Abbas;B. Benicewicz
中科院分区：
文献类型：
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作者：
Yang Zheng;Yucheng Huang;Zaid M. Abbas;B. Benicewicz
报道了第一例无机纳米粒子表面引发聚合诱导自组装（SI-PISA）成单壁囊泡的研究。首先将溶剂混溶性刷接枝到15 nm二氧化硅纳米颗粒上，随后通过溶剂不混溶性的第二刷的聚合诱导自组装。自组装发生在原位与第二刷的SI聚合。这种方法建立了一种以相对高的NP浓度制备纳米囊泡的方法，并且不需要任何聚合后处理。此外，这种策略提供了一个机会，观察纳米囊泡形成的演变，从分散良好的NP，这有助于我们了解表面接枝聚合物如何指导囊泡组装的NP。
The first case of surface-initiated polymerization-induced self-assembly (SI-PISA) of inorganic nanoparticles (NPs) into single-walled vesicles is reported. A solvent-miscible brush was first grafted onto 15 nm silica NPs, and self-assembly was subsequently induced by the polymerization of a second brush that was solvent-immiscible. Self-assembly occurred in situ with the SI-polymerization of the second brush. This approach establishes a method to prepare nanovesicles at relatively high NP concentration, and does not require any post-polymerization processing. Moreover, this strategy provided an opportunity to observe the evolution of nanovesicle formation from well-dispersed NPs, that aided our understanding of how surface-grafted polymers direct the vesicular assembly of NPs.