Sensitized photografting of diazonium salts by visible light.

Visible irradn. of a gold surface dipped into a soln. of diversely substituted aryldiazonium salts in the presence of a photosensitizer (Ru(bipy)32+ or eosinY) leads to a modification of the surface by attached aryl groups. A grafted nanometer thick polyphenylene film is obtained. The reaction is extended to a polyvinylchloride (PVC) surface. The mechanism proposed for the formation of this film involves the formation of an aryl radical that reacts with the surface and then with the first grafted aryl group. The film is characterized by IR reflection absorption spectroscopy (IRRAS), XPS, water contact angles, and ellipsometry. [on SciFinder(R)]

Références

Titre
Sensitized photografting of diazonium salts by visible light.
Type de publication
Article de revue
Année de publication
2013
Revue
Chem. Mater.
Volume
25
Pagination
90–97
ISSN
0897-4756
Soumis le 12 avril 2018