Methods and materials for selective modification of photopatterned polymer films
First Claim
1. A process for modifying a substrate, comprising the steps:
- (a) providing on said substrate functional groups adapted for conversion to oxygen-containing photoproducts upon exposure to actinic radiation;
(b) exposing at least a portion of said substrate to said actinic radiation, thereby converting said functional groups in an exposed region of said substrate to said photoproducts;
(c) contacting said photoproducts with a primary or secondary amine in the presence of hydrogen ions, thereby forming imine groups; and
(d) contacting said imine groups with a reducing agent, thereby forming amine groups on said substrate in said exposed region.
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Abstract
An aspect of the present invention is a process for modifying a substrate in areas that are exposed to actinic radiation, having the steps: (a) providing on the substrate functional groups adapted for conversion to oxygen-containing photoproducts upon exposure to actinic radiation; (b) exposing at least a portion of the substrate to the actinic radiation, converting the functional groups in an exposed region of the substrate to the photoproducts; (c) contacting the photoproducts with a primary or secondary amine in the presence of hydrogen ions, forming imine groups; and (d) contacting the imine groups with a reducing agent, forming amine groups on the substrate in the exposed region. Another aspect of the present invention is a process for modifying a substrate in areas that are unexposed to actinic radiation, having the steps: (a) providing on the substrate aryl functional groups adapted for conversion to oxygen-containing photoproducts upon exposure to actinic radiation; (b) exposing a portion of the substrate to the actinic radiation, converting the aryl functional groups in an exposed region of the substrate to the photoproducts, and not converting the aryl functional groups in an unexposed region of the substrate to the photoproducts; (c) contacting the aryl functional groups in the unexposed region of the substrate with a compound adapted for physisorption to the aryl functional groups, preferentially physisorbing the compound onto the substrate in the unexposed regions.
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Citations
48 Claims
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1. A process for modifying a substrate, comprising the steps:
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(a) providing on said substrate functional groups adapted for conversion to oxygen-containing photoproducts upon exposure to actinic radiation;
(b) exposing at least a portion of said substrate to said actinic radiation, thereby converting said functional groups in an exposed region of said substrate to said photoproducts;
(c) contacting said photoproducts with a primary or secondary amine in the presence of hydrogen ions, thereby forming imine groups; and
(d) contacting said imine groups with a reducing agent, thereby forming amine groups on said substrate in said exposed region. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
(e) depositing metal on said amine groups by a method selected from the group consisting of;
(i) contacting said amine groups with a metallization catalyst and subsequently with an electroless plating solution, thereby forming a metal coating on said exposed region; and
(ii) depositing said metal on said amine groups by chemical vapor deposition.
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21. The process of claim 20, wherein said electroless plating solution is a plating solution for the deposition of metal wherein said metal in said electroless plating solution is selected from the group consisting of nickel, gold, copper, silver, platinum, palladium, cobalt, iron, zinc, rhenium and combinations thereof.
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22. The process of claim 21, wherein said steps (c) and (d) are performed concurrently.
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23. The process of claim 21, wherein said step (c) is performed prior to step (d).
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24. A process for metallizing a substrate, comprising the steps:
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(a) providing on said substrate functional groups adapted for conversion to photoproducts selected from the group consisting of aldehydes and acids upon exposure to actinic radiation;
(b) exposing at least a portion of said substrate to said actinic radiation, thereby converting said functional groups in an exposed region of said substrate to said photoproducts;
(c) contacting said photoproducts with a primary or secondary amine in the presence of hydrogen ions, thereby forming imine groups;
(d) contacting said imine groups with a reducing agent, thereby forming amine groups on said substrate in said exposed region; and
(e) depositing a metal on said amine groups by chemical vapor deposition.
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25. A process for modifying a substrate, comprising the steps:
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(a) providing on said substrate aryl functional groups adapted for conversion to oxygen-containing photoproducts upon exposure to actinic radiation;
(b) exposing a portion of said substrate to said actinic radiation, thereby converting said aryl functional groups in an exposed region of said substrate to said photoproducts, and not converting said aryl functional groups in an unexposed region of said substrate to said photoproducts;
(c) contacting said aryl functional groups in said unexposed region of said substrate with a compound adapted for physisorption to said aryl functional groups, thereby physisorbing said compound onto said substrate in said unexposed regions. - View Dependent Claims (26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45)
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46. A process for modifying a substrate, comprising the steps:
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(a) providing on said substrate functional groups selected for physisorbing pyrrole;
(b) contacting said functional groups with pyrrole, thereby physisorbing said pyrrole onto said substrate;
(c) contacting said physisorbed pyrrole with an oxidant solution for initiating polymerization in said pyrrole, thereby polymerizing said pyrrole. - View Dependent Claims (47, 48)
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Specification