10.1021/acs.macromol.8b00747.s001
J. Zhang
J.
Zhang
J. Lalevée
J.
Lalevée
X. Mou
X.
Mou
F. Morlet-Savary
F.
Morlet-Savary
B. Graff
B.
Graff
P. Xiao
P.
Xiao
<i>N</i>‑Phenylglycine as a Versatile
Photoinitiator under Near-UV LED
American Chemical Society
2018
UV LED
radical
Phenylglycine
phenylglycine
photochemistry
392 nm
photopolymerization
Near-UV LED N
2018-05-09 12:39:22
Journal contribution
https://acs.figshare.com/articles/journal_contribution/_i_N_i_Phenylglycine_as_a_Versatile_Photoinitiator_under_Near-UV_LED/6236909
<i>N</i>-Phenylglycine is normally used as a co-initiator
and can be photodecomposed by different dyes under UV or visible light
irradiation to generate radicals for the initiation of free radical
photopolymerization. However, the photochemistry and photoinitiation
ability of <i>N</i>-phenylglycine alone upon exposure to
near-UV light (e.g., UV LED at 392 nm), to the best of our knowledge,
have not been investigated. In this research, the photochemistry of <i>N</i>-phenylglycine under the UV LED at 392 nm is studied using
various approaches, and it reveals that radicals (PhNHCH<sub>2</sub><sup>•</sup>) can be produced from the direct photodecomposition
of <i>N</i>-phenylglycine. In addition, <i>N</i>-phenylglycine can also interact with iodonium salt under the UV
LED at 392 nm to generate phenyl radicals and cations. These formed
active species exhibit high performance to initiate the free radical
photopolymerization of acylates and cationic photopolymerization of
epoxides and divinyl ethers.