SGER: Preparation and Properties of Macromolecular Brush Gradients

genzer， JanNorth Carolina State upi提出了一种制备梯度聚合物刷的方法-末端锚定在基底上的聚合物接枝密度随空间变化的结构。PI们认为，提议的设置是独一无二的，因为它将允许人们第一次探索刷子和蘑菇构象之间转变的细节。此外，他们预测这种方法可能对设计具有独特性能的新型材料和结构产生重大影响。例如，控制大分子接枝密度的能力使我们能够定制材料的屏障特性，这将使它们成为高质量过滤器或膜的非常有吸引力的候选者。此外，在刷子状结构中组装聚合物被认为提供了前所未有的产生“纳米结构分子模板”的方法，例如，可以用作控制聚合物基质中非聚合物材料（例如，纳米颗粒，硅酸盐等）排序的分子种子。

AbstractCTS-0209403Genzer, JanNorth Carolina State UThe PI's propose a method for preparing gradient polymer brushes - structures with spatial variation of grafting density of polymers end-anchored on substrates. The PI's believe that the proposed set up is unique as it would allow one, for the first time, to explore the details of the transition between the brush and mushroom conformations. Moreover, they predict that this methodology could have a high impact on designing novel materials and structures with unique properties. For example, the ability to control the grafting density of macromolecules enables us to tailor the barrier properties of the materials, which would make them very attractive candidates for high quality filters or membranes. Additionally, assembling polymers in brush-like structures is believed to provide unprecedented means of generating "nanostructured molecular templates" that can be for example used as molecular seeds governing the ordering of non-polymeric materials (e.g.,nanoparticles, silicates, etc.) in polymeric matrices.