Photoreactive polymer brushes for high-density patterned surface derivatization using a diels-alder photoclick reaction
Reactive polymer brushes grown on silicon oxide surfaces were derivatized with photoreactive 3-(hydroxymethyl)naphthalene-2-ol (NQMP) moieties. Upon 300 or 350 nm irradiation, NQMP efficiently produces o-naphthoquinone methide (oNQM), which in turn undergoes very rapid Diels-Alder addition to vinyl ether groups attached to a substrate, resulting in the covalent immobilization of the latter. Any unreacted oNQM groups rapidly add water to regenerate NQMP. High-resolution surface patterning is achieved by irradiating NQMP-derivatized surfaces using photolithographic methods. The Diels-Alder photoclick reaction is orthogonal to azide-alkyne click chemistry, enabling sequential photoclick/azide-click derivatizations to generate complex surface functionalities.
Arumugam, Selvanathan,Orski, Sara V.,Locklin, Jason,Popik, Vladimir V.
SYNTHESIS OF THE VINYL PROPARGYL DIETHERS OF DIOLS UNDER CONDITIONS OF PHASE-TRANSFER CATALYSIS
A method was developed for the synthesis of the vinyl propargyl diethers of diols from the vinyl monoethers of diols and propargyl halides under the conditions of phase-transfer catalysis.
Lavrov, V. I.,Parshina, L. N.,Stankevich, V. K.,Trofimov, B. A.
p. 249 - 251
(2007/10/02)
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