Luzinov Igor, Minko Sergiy, Tsukruk Vladimir V
School of Materials Science and Engineering and Center for Optical Materials Science and Engineering Technologies, Clemson University, Clemson, SC 29634, USA.
Department of Chemistry and Biomolecular Science, Clarkson University, Potsdam, NY 13699, USA.
Soft Matter. 2008 Mar 20;4(4):714-725. doi: 10.1039/b718999k.
We present a condensed overview of the recent developments of novel responsive thin polymer films from end-tethered chains (polymer brushes), which are different from conventional, uniform, and planar brush layers. For this discussion, we selected two types of recently introduced surface layers: binary brush layers with variable chemical composition forming a controllable gradient of composition and properties in a selected direction and brush layers either grafted directly to inorganic nanoparticles to form hybrid core-shell structures or combined with inorganic nanoparticles embedded into this layer. Unlike traditional brush layers, such a design brings a novel set of responsive surface properties allowing for capillary-driven microfluidic motion, combinatorial-like multiplexing response, reversible aggregation and dis-assembly of nanoparticles, fabrication of ultrahydrophobic coatings, and switchable mass transport across interfaces.
我们简要概述了由末端连接链（聚合物刷）构成的新型响应性聚合物薄膜的最新进展，这些薄膜不同于传统的、均匀的平面刷层。在本次讨论中，我们选择了两类最近引入的表面层：具有可变化学成分的二元刷层，可在选定方向上形成可控的成分和性质梯度；以及直接接枝到无机纳米颗粒上以形成杂化核壳结构或与嵌入该层的无机纳米颗粒相结合的刷层。与传统刷层不同，这种设计带来了一系列新颖的响应性表面特性，可实现毛细管驱动的微流体运动、类似组合的多路复用响应、纳米颗粒的可逆聚集和解聚、超疏水涂层的制备以及跨界面的可切换质量传输。
