Department of Chemical and Biomolecular Engineering, University of Delaware, Newark, Delaware 19716, United States.
Langmuir. 2013 Mar 26;29(12):3864-78. doi: 10.1021/la304800t. Epub 2013 Feb 13.
Nanostructured soft materials from self-assembled block copolymers (BCP)s and polymer blends can enable the reliable, high-throughput, and cost-effective generation of nanoscale structural motifs for many emerging technologies. Our research group has studied the phase behavior of BCPs in bulk, thin film, and solution environments with a particular focus on using interfacial manipulations to control self-assembly and to access a vast array of nanoscale morphologies and orientations. These interfacial manipulations can be synthetic alterations that are directly incorporated into the BCP chain to modify polymer-polymer interactions, post-polymerization and non-synthetic modifications that affect block interactions, or changes to the polymer specimen's external surroundings to control self-assembly in a confining environment. Herein, we describe methods that we have employed to manipulate BCP self-assembly for various application targets, and we discuss the key effects of such manipulations on the resulting nanoscale morphologies.
自组装嵌段共聚物 (BCP) 和聚合物共混物的纳米结构软材料可实现可靠、高通量且具有成本效益的纳米结构图案的生成，从而推动许多新兴技术的发展。我们的研究小组研究了 BCP 在本体、薄膜和溶液环境中的相行为，特别关注利用界面操作来控制自组装并获得广泛的纳米级形貌和取向。这些界面操作可以是直接纳入 BCP 链中的合成改变，以修饰聚合物-聚合物相互作用，也可以是影响嵌段相互作用的聚合后和非合成改变，或者是改变聚合物样品的外部环境以在受限环境中控制自组装。在此，我们描述了我们用于操纵 BCP 自组装以实现各种应用目标的方法，并讨论了这些操作对所得纳米级形貌的关键影响。
