Patent ID: 8911852
Filing Date: 2014-12-16
Classification: B05D,B82Y,Y10T

Abstract:
1. A freestanding structured monolayer comprising low-molecular aromatics and being fully cross-linked in the lateral direction, the monolayer having a pattern of functional groups on one of the two surfaces, obtained by a method comprising: (a) providing a substrate, (b) optionally modifying at least one surface of the substrate, (c) applying a monolayer of low-molecular aromatics or applying a monolayer of low-molecular aromatics comprising at least one functional group to at least one, optionally modified surface of the substrate by bonding via anchor groups, (d) treating the substrate obtained in step (c) with high-energy radiation such that the monolayer comprising low-molecular aromatics is selectively cross-linked in the lateral direction in specific areas thus forming a pattern, whereby a monolayer with cross-linked and uncross-linked areas is formed, (e) treating the substrate obtained in step (d) with low-molecular aromatics comprising at least one functional group such that an exchange of the uncross-linked low-molecular aromatics for low-molecular aromatics comprising at least one functional group takes place, or (f) treating the substrate obtained in step (e) with high-energy radiation such that a cross-linking of the exchanged aromatics comprising at least one functional group takes place among one another and with the aromatics cross-linked in step (d), or such that a cross-linking of the exchanged aromatics takes place among one another and with the aromatics comprising at least one functional group and cross-linked in step (d), and optionally (g) removing the substrate to obtain a structured monolayer that is not bonded to a substrate.