Large-Volume Self-Organization of Polymer/Nanoparticle Hybrids with Millimeter-Scale Grain Sizes Using Brush Block Copolymers
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- 作者：Dong-Po Song ; Cheng Li ; Nicholas S. Colella ; Wanting Xie ; Shengkai Li ; Xuemin Lu ; Samuel Gido ; Jae-Hwang Lee ; James J. Watkins
- 刊名：Journal of the American Chemical Society
- 出版年：2015
- 出版时间：October 7, 2015
- 年：2015
- 卷：137
- 期：39
- 页码：12510-12513
- 全文大小：326K
- ISSN：1520-5126
文摘
We report that an exceptionally large volume of highly ordered arrays (single grains) on the order of millimeters in scale can be rapidly created through a unique innate guiding mechanism of brush block copolymers (BBCPs). The grain volume is over 109 times larger than that of typical self-assembled linear BCPs (LBCPs). The use of strong interactions between nanoparticles (NPs) and BBCPs enables high loadings of functional materials, up to 76 wt % (46 vol %) in the target domain, while maintaining excellent long-range order. Overall, this work provides a simple method to precisely control the spatial orientation of functionalities at nanometer length scales over macroscopic volumes, thereby enabling the production of hybrid materials for many important applications.