Self-assembly of Janus nanoparticles in diblock copolymers.
Self-assembly of Janus nanoparticles in diblock copolymers.
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DOI：
10.1021/nn901739v
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发表时间：
2010-01
期刊：
影响因子：
17.1
通讯作者：
Li-Tang Yan;N. Popp;S. Ghosh;A. Böker
中科院分区：
文献类型：
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作者：
Li-Tang Yan;N. Popp;S. Ghosh;A. Böker
具有两个化学性质不同的隔室的 Janus 纳米粒子已被证明是溶液中一类独特的构建块。在这里，我们进行介观模拟，以探索二嵌段共聚物中具有广泛不同结构的 Janus 纳米粒子的自组装。我们证明这些两亲性结构单元的共组装在嵌段共聚物的界面上形成新颖且可调节的结构，从而影响界面稳定性和结构演化动力学。我们的模拟表明，Janus 纳米粒子在嵌段共聚物界面上的自组装对具有改善的剪切行为的聚合物纳米复合材料的产生产生了相当大的控制。在这种情况下，该方法是创建具有增强加工性能的功能材料的可行策略。
Janus nanoparticles with two chemically different compartments have been shown to be a unique class of building blocks in solution. Here we perform mesoscale simulations to explore the self-assembly of Janus nanoparticles with widely varying architectures in diblock copolymers. We demonstrate that the coassembly of these amphiphilic building blocks forms novel and tunable structures at the interfaces of block copolymers, and consequently influences the interface stabilization and structural evolution kinetics. Our simulations suggest that Janus nanoparticle self-assembly at block copolymer interfaces yields considerable control over the creation of polymer nanocomposites with improved shear behavior. In this context, the approach is a viable strategy for creating functional materials with enhanced processing properties.