Lee Jae-Youn, Thompson Russell B, Jasnow David, Balazs Anna C
Department of Chemical and Petroleum Engineering, University of Pittsburgh, Pennsylvania 15261, USA.
Phys Rev Lett. 2002 Oct 7;89(15):155503. doi: 10.1103/PhysRevLett.89.155503. Epub 2002 Sep 23.
Using theoretical models, we undertake the first investigation into the rich behavior that emerges when binary particle mixtures are blended with microphase-separating copolymers. We isolate an example of coupled self-assembly in such materials, where the system undergoes a nanoscale ordering of the particles along with a phase transformation in the copolymer matrix. Furthermore, the self-assembly is driven by entropic effects involving all the different components. The results reveal that entropy can be exploited to create highly ordered nanocomposites with potentially unique electronic and photonic properties.
利用理论模型，我们首次对二元粒子混合物与微相分离共聚物混合时出现的丰富行为进行了研究。我们在这类材料中分离出了耦合自组装的一个例子，即系统中粒子发生纳米级有序排列，同时共聚物基质发生相变。此外，自组装是由涉及所有不同组分的熵效应驱动的。结果表明，可以利用熵来制造具有潜在独特电子和光子特性的高度有序纳米复合材料。
