期刊
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
卷 132, 期 32, 页码 11024-11026出版社
AMER CHEMICAL SOC
DOI: 10.1021/ja105066t
关键词
-
资金
- National Science Foundation [ECCS 0901141]
Surfaces containing reactive ester polymer brushes were functionalized with cyclopropenone-masked dibenzocyclooctynes for the light activated immobilization of azides using catalyst-free click chemistry. The photodecarbonylation reaction in the amorphous brush layer is first order for the first 45 s with a rate constant of 0.022 s(-1). The catalyst-free cycloaddition of surface bound dibeznocyclooctynes proceeds rapidly in the presence of azides under ambient conditions. Photolithography using a shadow mask was used to demonstrate patterning with multiple azide containing molecules. This surface immobilization strategy provides a general and facile platform for the generation of multicomponent surfaces with spatially resolved chemical functionality.
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