Tuning the Thickness of Polymer Brushes Grafted from Nonlinearly Growing Multilayer Assemblies

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• 作者：Erik Wischerhoff ; Stefan Glatzel ; Katja Uhlig ; Andreas Lankenau ; Jean-Franois Lutz ; Andr Laschewsky
• 刊名：Langmuir
• 出版年：2009
• 出版时间：May 19, 2009
• 年：2009
• 卷：25
• 期：10
• 页码：5949-5956
• 全文大小：849K
• 年卷期：v.25,no.10(May 19, 2009)
• ISSN：1520-5827

文摘

A new versatile method for tuning the thickness of surface-tethered polymer brushes is introduced. It is based on the combination of polyelectrolyte multilayer deposition and surface-initiated atom transfer radical polymerization. To control the thickness of the brushes, the nonlinear growth of certain polyelectrolyte multilayer systems is exploited. The method is demonstrated to work with different polyelectrolytes and different monomers. The relevance for applications is demonstrated by cell adhesion experiments on grafted thermoresponsive polymer layers with varying thickness.