Silane Coating Compositions, Coating Systems, and Methods
The present invention relates to coating systems and coating systems on substrates. In an embodiment, the invention includes an article including a substrate, a base layer disposed on the substrate, the base layer comprising a silane compound with a photoreactive group, or the reaction product of a silane compound with a photoreactive group, and a polymer layer disposed on the base layer, the polymer layer comprising a polymer terminally anchored to the base layer. In an embodiment, the invention includes a coating for an article. In an embodiment, the invention includes a method of depositing a coating onto a substrate.
1 . An article comprising:
a substrate;
a base layer disposed on the substrate, the base layer comprising a silane compound with a photoreactive group, or the reaction product of a silane compound with a photoreactive group; and
a polymer layer disposed on the base layer, the polymer layer comprising a polymer terminally anchored to the base layer.
2 . The article of claim 1 , the polymer terminally anchored to the base layer comprising a hydrophilic moiety.
3 . The article of claim 1 , the polymer terminally anchored to the base layer comprising an acrylamide group.
4 . The article of claim 1 , the polymer terminally anchored to the base layer comprising a biocompatible moiety.
5 . The article of claim 1 , the polymer terminally anchored to the base layer covalently bonded to the base layer.
6 . The article of claim 1 , the polymer terminally anchored to the base layer comprising a monolayer.
7 . The article of claim 1 , the base layer covalently bonded to the substrate.
8 . The article of claim 1 , the base layer comprising a monolayer.
9 . The article of claim 1 , the photoreactive group selected from the group consisting of azides, diazos, diazirines, ketenes, ketones, and quinones.
10 . The article of claim 1 , the photoreactive group comprising an aryl ketone group.
11 . The article of claim 1 , the photoreactive group comprising a benzophenone.
12 . The article of claim 1 , the silane compound comprising 4-benzoylbenzoyl)aminopropyltrimethoxy silane.
13 . The article of claim 1 , the substrate comprising an inorganic material.
14 . An article comprising:
a substrate;
a base layer disposed on the substrate, the base layer comprising a compound comprising a photoreactive group, or the reaction product of a compound comprising a photoreactive group; and
a polymer layer disposed on the base layer, the polymer layer comprising a polymer terminally anchored to the base layer.
15 . The article of claim 14 , the compound comprising a photoreactive group comprising a photoreactive cross-linking agent.
16 . A coating for an article, the coating comprising:
a substrate;
a first layer disposed on the substrate, the first layer comprising a silane compound with a photoreactive group, or the reaction product of a silane compound with a photoreactive group; and
a second layer disposed on the first layer, the second layer comprising terminally anchored polymer chains.
17 . The coating of claim 16 , the terminally anchored polymer chains comprising a hydrophilic moiety.
18 . The coating of claim 16 , the terminally anchored polymer chains comprising an acrylamide group.
19 . The coating of claim 16 , the terminally anchored polymer chains covalently bonded to the base layer.
20 . A method of depositing a coating onto a substrate, the method comprising:
applying a silane compound onto a substrate, the silane compound comprising a photoreactive group;
applying a coating solution onto the silane compound, the coating solution comprising a monomer;
applying actinic energy to the photoreactive group of the silane compound; and
forming a polymer chain from the monomer that is terminally anchored to the silane compound.