Functionalization and soft photoreduction of graphene oxide triggered by the photoinitiator during thiol-ene radical addition

The “How” and “Where” Behind the Functionalization of Graphene Oxide by Thiol‐ene “Click” Chemistry

“…Our research group has explored the GO functionalization and reduction when TERA was triggered by Irgacure® 369. [84] We found that the molar ratio PI to thiol plays an important role to minimize the GO reduction while increasing the orthogonality. Interestingly, upon increasing the concentration of Irgacure® 369, a corresponding increase in the C/O ratio was observed, ranging from 2.4 to 3.4, being dimethylamine benzyl radical (DBR) the possible responsible to displace alcohols and carboxylic acids, as depicted in Figure 9.…”

“…Interestingly, the authors found that the ketyl radicals conducted to the release of carboxylic acids and hydroxyl groups from GO, ultimately leading to a partial restoration of the conjugation system of GO. Our research group has explored the GO functionalization and reduction when TERA was triggered by Irgacure® 369 [84] . We found that the molar ratio PI to thiol plays an important role to minimize the GO reduction while increasing the orthogonality.…”

Polarized ATR-IR spectroscopy for the identification of material structure: The case of graphene oxide

“…GO was synthesized according to the modified Hummer's method [10] (see SI), and characterized by Raman spectroscopy, XPS and ATR-FTIR (Fig. S1 to S4).…”

Covalent functionalization of 1D and 2D sp2-carbon nanoallotropes – twelve years of progress (2011–2023)

“…Thiolene radical addition (TERA) allowed the functionalization of GO with reactive alkenes and thiols. 170 Cysteamine (CA)-functionalization of GO using TERA and Irgacure® 369 was studied. TERA preserved the GO chemistry allowing for various subsequent orthogonal reactions.…”