Photochemical Attachment of Polymer Films to Solid Surfaces via Monolayers of Benzophenone Derivatives
作者:Oswald Prucker、Christoph A. Naumann、Jürgen Rühe、Wolfgang Knoll、Curtis W. Frank
DOI:10.1021/ja990962+
日期:1999.9.1
layers to solid surfaces. The system is based on a photoreactive benzophenone derivative that is bound to SiO2 surfaces via a silane anchor. This substrate is then covered with a polymer film that is reacted with the benzophenone moieties by illumination with UV light (λ > 340 nm). As a result of the photochemical reaction, a thin layer of the polymer is covalently bound to the surface. Nonattached polymer
我们报告了一种简单而有效的方法将薄聚合物层光化学附着到固体表面。该系统基于光反应性二苯甲酮衍生物,该衍生物通过硅烷锚键与 SiO2 表面结合。然后,该基材覆盖有聚合物薄膜,该薄膜通过紫外光 (λ > 340 nm) 的照射与二苯甲酮部分发生反应。作为光化学反应的结果,聚合物的薄层共价结合到表面。通过萃取去除未连接的聚合物。例如,我们已经成功地连接了聚(苯乙烯)和聚(乙基恶唑啉)的薄层。层的厚度是照射时间和聚合物分子量的函数。薄膜厚度随着用于连接的聚合物的回转半径线性增加。使用这个系统,