Cascade Molecule鈥揚article鈥揗olecule Self-Assemblies for Fabricating Narrowly Size-Distributed Polymeric Superparticles with a Bicontinuous Nanostructure

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• 作者：Yong Gao ; Yafen Wang ; Ming Jiang ; Daoyong Chen
• 刊名：ACS Macro Letters
• 出版年：2012
• 出版时间：November 20, 2012
• 年：2012
• 卷：1
• 期：11
• 页码：1312-1316
• 全文大小：276K
• 年卷期：v.1,no.11(November 20, 2012)
• ISSN：2161-1653

文摘

Broader developments of nanoscience and nanotechnology require complexly but regularly structured nanoparticles whose fabrications in turn pose a great challenge to nanoscience and nanotechnology. In this communication, we report a new and robust method with a clear mechanism for fabricating narrowly size-distributed superparticles with a bicontinuous inner structure. The processes for the fabrication include: molecular self-assembly of a triblock copolymer in its selective solvent into the core鈥搒hell鈥揷orona micelles, the self-limited aggregation of the micelles (particles) into narrowly size-distributed superparticles constructed by the integrated micelles, and the final molecular self-assembly confined within the superparticles into cylinders that are crowded and interconnected to form the bicontinuous nanostructure; the molecular self-assembly into the micelles, the self-limited aggregation of the particles (i.e., the micelles), and the further molecular self-assembly within the superparticles occurred in a cascade manner.